./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.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_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/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_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/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_516740be-a5e4-4f75-b045-268c0dbab2e9/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 d88022892faa8e5323e127ecf7d946bb4c2009d3a662bbf4d5eed2e18ed61b2a --- 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 20:29:39,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:29:39,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:29:39,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:29:39,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:29:39,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:29:39,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:29:39,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:29:39,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:29:39,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:29:39,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:29:39,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:29:39,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:29:39,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:29:39,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:29:39,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:29:39,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:29:39,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:29:39,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:29:39,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:29:39,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:29:39,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:29:39,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:29:39,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:29:39,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:29:39,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:29:39,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:29:39,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:29:39,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:29:39,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:29:39,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:29:39,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:29:39,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:29:39,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:29:39,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:29:39,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:29:39,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:29:39,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:29:39,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:29:39,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:29:39,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:29:39,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:29:39,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:29:39,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:29:39,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:29:39,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:29:39,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:29:39,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:29:39,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:29:39,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:29:39,068 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:29:39,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:29:39,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:29:39,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:29:39,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:29:39,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:29:39,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:29:39,072 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:29:39,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:29:39,072 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:29:39,072 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_516740be-a5e4-4f75-b045-268c0dbab2e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88022892faa8e5323e127ecf7d946bb4c2009d3a662bbf4d5eed2e18ed61b2a [2022-12-13 20:29:39,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:29:39,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:29:39,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:29:39,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:29:39,291 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:29:39,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2022-12-13 20:29:41,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:29:42,080 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:29:42,081 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2022-12-13 20:29:42,092 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/data/b796e8eac/fae62bc92dcd44efaa17d7f73647a787/FLAG422226ef2 [2022-12-13 20:29:42,444 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/data/b796e8eac/fae62bc92dcd44efaa17d7f73647a787 [2022-12-13 20:29:42,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:29:42,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:29:42,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:29:42,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:29:42,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:29:42,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:29:42" (1/1) ... [2022-12-13 20:29:42,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cde93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:42, skipping insertion in model container [2022-12-13 20:29:42,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:29:42" (1/1) ... [2022-12-13 20:29:42,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:29:42,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:29:42,807 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_516740be-a5e4-4f75-b045-268c0dbab2e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[24514,24527] [2022-12-13 20:29:42,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:29:42,920 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:29:43,036 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_516740be-a5e4-4f75-b045-268c0dbab2e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[24514,24527] [2022-12-13 20:29:43,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:29:43,128 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:29:43,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43 WrapperNode [2022-12-13 20:29:43,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:29:43,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:29:43,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:29:43,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:29:43,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,190 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2210 [2022-12-13 20:29:43,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:29:43,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:29:43,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:29:43,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:29:43,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:29:43,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:29:43,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:29:43,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:29:43,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (1/1) ... [2022-12-13 20:29:43,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:29:43,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:29:43,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:29:43,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516740be-a5e4-4f75-b045-268c0dbab2e9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:29:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:29:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:29:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:29:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:29:43,455 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:29:43,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:29:44,510 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:29:44,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:29:44,522 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:29:44,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:29:44 BoogieIcfgContainer [2022-12-13 20:29:44,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:29:44,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:29:44,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:29:44,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:29:44,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:29:42" (1/3) ... [2022-12-13 20:29:44,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278dbffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:29:44, skipping insertion in model container [2022-12-13 20:29:44,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:29:43" (2/3) ... [2022-12-13 20:29:44,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278dbffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:29:44, skipping insertion in model container [2022-12-13 20:29:44,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:29:44" (3/3) ... [2022-12-13 20:29:44,530 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2022-12-13 20:29:44,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:29:44,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:29:44,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:29:44,592 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;@3095defa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:29:44,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:29:44,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 588 states, 579 states have (on average 1.7910189982728844) internal successors, (1037), 587 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-12-13 20:29:44,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:44,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:44,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash 912319734, now seen corresponding path program 1 times [2022-12-13 20:29:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:44,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247502159] [2022-12-13 20:29:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:44,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:45,099 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 20:29:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247502159] [2022-12-13 20:29:45,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247502159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:45,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:45,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:29:45,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067399901] [2022-12-13 20:29:45,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:45,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:45,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:29:45,129 INFO L87 Difference]: Start difference. First operand has 588 states, 579 states have (on average 1.7910189982728844) internal successors, (1037), 587 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:45,338 INFO L93 Difference]: Finished difference Result 1072 states and 1863 transitions. [2022-12-13 20:29:45,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:45,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2022-12-13 20:29:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:45,354 INFO L225 Difference]: With dead ends: 1072 [2022-12-13 20:29:45,354 INFO L226 Difference]: Without dead ends: 876 [2022-12-13 20:29:45,357 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 20:29:45,360 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 576 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:45,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1795 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:29:45,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-12-13 20:29:45,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 874. [2022-12-13 20:29:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 1.558991981672394) internal successors, (1361), 873 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1361 transitions. [2022-12-13 20:29:45,433 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1361 transitions. Word has length 234 [2022-12-13 20:29:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:45,433 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1361 transitions. [2022-12-13 20:29:45,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1361 transitions. [2022-12-13 20:29:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-12-13 20:29:45,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:45,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:45,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:29:45,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -70671080, now seen corresponding path program 1 times [2022-12-13 20:29:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662697314] [2022-12-13 20:29:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:45,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:29:45,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:45,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662697314] [2022-12-13 20:29:45,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662697314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:45,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:45,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:29:45,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891195006] [2022-12-13 20:29:45,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:45,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:29:45,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:45,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:29:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:29:45,986 INFO L87 Difference]: Start difference. First operand 874 states and 1361 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:46,170 INFO L93 Difference]: Finished difference Result 2576 states and 4006 transitions. [2022-12-13 20:29:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:29:46,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2022-12-13 20:29:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:46,177 INFO L225 Difference]: With dead ends: 2576 [2022-12-13 20:29:46,177 INFO L226 Difference]: Without dead ends: 1713 [2022-12-13 20:29:46,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:29:46,181 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 1967 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:46,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 2270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:29:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-12-13 20:29:46,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1711. [2022-12-13 20:29:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1710 states have (on average 1.5473684210526315) internal successors, (2646), 1710 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2646 transitions. [2022-12-13 20:29:46,272 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2646 transitions. Word has length 234 [2022-12-13 20:29:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:46,273 INFO L495 AbstractCegarLoop]: Abstraction has 1711 states and 2646 transitions. [2022-12-13 20:29:46,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2646 transitions. [2022-12-13 20:29:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-12-13 20:29:46,281 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:46,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:46,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:29:46,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1281083139, now seen corresponding path program 1 times [2022-12-13 20:29:46,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:46,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794609316] [2022-12-13 20:29:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:46,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,423 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 20:29:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:46,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794609316] [2022-12-13 20:29:46,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794609316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:46,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:46,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:29:46,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981719077] [2022-12-13 20:29:46,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:46,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:46,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:46,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:46,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:29:46,427 INFO L87 Difference]: Start difference. First operand 1711 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:46,643 INFO L93 Difference]: Finished difference Result 4946 states and 7614 transitions. [2022-12-13 20:29:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2022-12-13 20:29:46,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:46,654 INFO L225 Difference]: With dead ends: 4946 [2022-12-13 20:29:46,654 INFO L226 Difference]: Without dead ends: 3360 [2022-12-13 20:29:46,656 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 20:29:46,657 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 765 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:46,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2538 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-12-13 20:29:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3358. [2022-12-13 20:29:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3357 states have (on average 1.5379803395889187) internal successors, (5163), 3357 states have internal predecessors, (5163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 5163 transitions. [2022-12-13 20:29:46,851 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 5163 transitions. Word has length 236 [2022-12-13 20:29:46,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:46,851 INFO L495 AbstractCegarLoop]: Abstraction has 3358 states and 5163 transitions. [2022-12-13 20:29:46,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 5163 transitions. [2022-12-13 20:29:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-12-13 20:29:46,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:46,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:46,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:29:46,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:46,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1522783160, now seen corresponding path program 1 times [2022-12-13 20:29:46,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:46,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839995078] [2022-12-13 20:29:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:46,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:46,938 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 20:29:46,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:46,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839995078] [2022-12-13 20:29:46,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839995078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:46,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:46,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:29:46,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730047850] [2022-12-13 20:29:46,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:46,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:46,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:29:46,941 INFO L87 Difference]: Start difference. First operand 3358 states and 5163 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:47,309 INFO L93 Difference]: Finished difference Result 10007 states and 15373 transitions. [2022-12-13 20:29:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2022-12-13 20:29:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:47,326 INFO L225 Difference]: With dead ends: 10007 [2022-12-13 20:29:47,326 INFO L226 Difference]: Without dead ends: 6687 [2022-12-13 20:29:47,330 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 20:29:47,331 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 884 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:47,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 2659 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2022-12-13 20:29:47,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 3377. [2022-12-13 20:29:47,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3376 states have (on average 1.5376184834123223) internal successors, (5191), 3376 states have internal predecessors, (5191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5191 transitions. [2022-12-13 20:29:47,562 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5191 transitions. Word has length 236 [2022-12-13 20:29:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:47,562 INFO L495 AbstractCegarLoop]: Abstraction has 3377 states and 5191 transitions. [2022-12-13 20:29:47,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:47,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5191 transitions. [2022-12-13 20:29:47,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-12-13 20:29:47,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:47,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:47,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:29:47,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1023572120, now seen corresponding path program 1 times [2022-12-13 20:29:47,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:47,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14360746] [2022-12-13 20:29:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:47,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:47,633 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 20:29:47,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:47,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14360746] [2022-12-13 20:29:47,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14360746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:47,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:47,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:29:47,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39213534] [2022-12-13 20:29:47,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:47,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:47,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:47,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:47,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:29:47,636 INFO L87 Difference]: Start difference. First operand 3377 states and 5191 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:47,988 INFO L93 Difference]: Finished difference Result 10026 states and 15394 transitions. [2022-12-13 20:29:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:47,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2022-12-13 20:29:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:48,011 INFO L225 Difference]: With dead ends: 10026 [2022-12-13 20:29:48,011 INFO L226 Difference]: Without dead ends: 6705 [2022-12-13 20:29:48,015 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 20:29:48,016 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 879 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:48,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 2659 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-12-13 20:29:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 3395. [2022-12-13 20:29:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3395 states, 3394 states have (on average 1.5356511490866234) internal successors, (5212), 3394 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 5212 transitions. [2022-12-13 20:29:48,387 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 5212 transitions. Word has length 237 [2022-12-13 20:29:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:48,387 INFO L495 AbstractCegarLoop]: Abstraction has 3395 states and 5212 transitions. [2022-12-13 20:29:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 5212 transitions. [2022-12-13 20:29:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-13 20:29:48,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:48,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:29:48,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:29:48,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1450350274, now seen corresponding path program 1 times [2022-12-13 20:29:48,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:48,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112003944] [2022-12-13 20:29:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:48,501 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 20:29:48,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:48,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112003944] [2022-12-13 20:29:48,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112003944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:48,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:48,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:29:48,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954973893] [2022-12-13 20:29:48,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:48,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:29:48,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:29:48,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:29:48,504 INFO L87 Difference]: Start difference. First operand 3395 states and 5212 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:48,978 INFO L93 Difference]: Finished difference Result 9726 states and 14861 transitions. [2022-12-13 20:29:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:29:48,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 238 [2022-12-13 20:29:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:48,995 INFO L225 Difference]: With dead ends: 9726 [2022-12-13 20:29:48,996 INFO L226 Difference]: Without dead ends: 6572 [2022-12-13 20:29:48,998 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 20:29:48,999 INFO L413 NwaCegarLoop]: 1746 mSDtfsCounter, 758 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:48,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 2600 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:29:49,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2022-12-13 20:29:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 6570. [2022-12-13 20:29:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6570 states, 6569 states have (on average 1.5235195615771047) internal successors, (10008), 6569 states have internal predecessors, (10008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6570 states to 6570 states and 10008 transitions. [2022-12-13 20:29:49,450 INFO L78 Accepts]: Start accepts. Automaton has 6570 states and 10008 transitions. Word has length 238 [2022-12-13 20:29:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:49,450 INFO L495 AbstractCegarLoop]: Abstraction has 6570 states and 10008 transitions. [2022-12-13 20:29:49,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6570 states and 10008 transitions. [2022-12-13 20:29:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-13 20:29:49,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:49,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:49,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:29:49,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:49,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2126707749, now seen corresponding path program 1 times [2022-12-13 20:29:49,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:49,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861519796] [2022-12-13 20:29:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:49,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:49,785 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 20:29:49,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:49,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861519796] [2022-12-13 20:29:49,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861519796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:49,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:49,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:49,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375017606] [2022-12-13 20:29:49,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:49,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:29:49,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:49,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:29:49,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:29:49,788 INFO L87 Difference]: Start difference. First operand 6570 states and 10008 transitions. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:50,679 INFO L93 Difference]: Finished difference Result 19180 states and 29153 transitions. [2022-12-13 20:29:50,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:29:50,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 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 238 [2022-12-13 20:29:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:50,697 INFO L225 Difference]: With dead ends: 19180 [2022-12-13 20:29:50,697 INFO L226 Difference]: Without dead ends: 12665 [2022-12-13 20:29:50,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:29:50,704 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 1720 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:50,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 3111 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:29:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12665 states. [2022-12-13 20:29:51,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12665 to 12663. [2022-12-13 20:29:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12663 states, 12662 states have (on average 1.5088453640815036) internal successors, (19105), 12662 states have internal predecessors, (19105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12663 states to 12663 states and 19105 transitions. [2022-12-13 20:29:51,497 INFO L78 Accepts]: Start accepts. Automaton has 12663 states and 19105 transitions. Word has length 238 [2022-12-13 20:29:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:51,498 INFO L495 AbstractCegarLoop]: Abstraction has 12663 states and 19105 transitions. [2022-12-13 20:29:51,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12663 states and 19105 transitions. [2022-12-13 20:29:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-13 20:29:51,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:51,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:51,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:29:51,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1275872807, now seen corresponding path program 1 times [2022-12-13 20:29:51,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:51,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677551895] [2022-12-13 20:29:51,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:51,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:51,814 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 20:29:51,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:51,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677551895] [2022-12-13 20:29:51,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677551895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:51,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:51,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:51,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375106703] [2022-12-13 20:29:51,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:51,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:29:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:29:51,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:29:51,815 INFO L87 Difference]: Start difference. First operand 12663 states and 19105 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:53,585 INFO L93 Difference]: Finished difference Result 37198 states and 56032 transitions. [2022-12-13 20:29:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:29:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 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 240 [2022-12-13 20:29:53,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:53,620 INFO L225 Difference]: With dead ends: 37198 [2022-12-13 20:29:53,620 INFO L226 Difference]: Without dead ends: 24652 [2022-12-13 20:29:53,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:29:53,630 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 2041 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:53,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 3106 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:29:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24652 states. [2022-12-13 20:29:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24652 to 24650. [2022-12-13 20:29:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24650 states, 24649 states have (on average 1.4960444642784698) internal successors, (36876), 24649 states have internal predecessors, (36876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24650 states to 24650 states and 36876 transitions. [2022-12-13 20:29:55,506 INFO L78 Accepts]: Start accepts. Automaton has 24650 states and 36876 transitions. Word has length 240 [2022-12-13 20:29:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:29:55,506 INFO L495 AbstractCegarLoop]: Abstraction has 24650 states and 36876 transitions. [2022-12-13 20:29:55,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 24650 states and 36876 transitions. [2022-12-13 20:29:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-13 20:29:55,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:29:55,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:55,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:29:55,524 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:29:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:55,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1140695391, now seen corresponding path program 1 times [2022-12-13 20:29:55,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:55,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105223753] [2022-12-13 20:29:55,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:55,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:55,781 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 20:29:55,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:55,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105223753] [2022-12-13 20:29:55,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105223753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:55,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:55,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:29:55,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294010236] [2022-12-13 20:29:55,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:55,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:29:55,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:55,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:29:55,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:29:55,783 INFO L87 Difference]: Start difference. First operand 24650 states and 36876 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:29:59,633 INFO L93 Difference]: Finished difference Result 72588 states and 108409 transitions. [2022-12-13 20:29:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:29:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 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 240 [2022-12-13 20:29:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:29:59,694 INFO L225 Difference]: With dead ends: 72588 [2022-12-13 20:29:59,694 INFO L226 Difference]: Without dead ends: 48168 [2022-12-13 20:29:59,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:29:59,712 INFO L413 NwaCegarLoop]: 1407 mSDtfsCounter, 1908 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:29:59,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 2251 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:29:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48168 states. [2022-12-13 20:30:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48168 to 48166. [2022-12-13 20:30:03,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48166 states, 48165 states have (on average 1.4834008097165992) internal successors, (71448), 48165 states have internal predecessors, (71448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48166 states to 48166 states and 71448 transitions. [2022-12-13 20:30:03,626 INFO L78 Accepts]: Start accepts. Automaton has 48166 states and 71448 transitions. Word has length 240 [2022-12-13 20:30:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:03,626 INFO L495 AbstractCegarLoop]: Abstraction has 48166 states and 71448 transitions. [2022-12-13 20:30:03,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 48166 states and 71448 transitions. [2022-12-13 20:30:03,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-12-13 20:30:03,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:03,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:03,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:30:03,661 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:03,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:03,661 INFO L85 PathProgramCache]: Analyzing trace with hash -648496959, now seen corresponding path program 1 times [2022-12-13 20:30:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:03,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977793718] [2022-12-13 20:30:03,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:03,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:03,744 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 20:30:03,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:03,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977793718] [2022-12-13 20:30:03,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977793718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:03,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:03,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:30:03,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487560971] [2022-12-13 20:30:03,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:03,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:30:03,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:30:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:30:03,746 INFO L87 Difference]: Start difference. First operand 48166 states and 71448 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:11,237 INFO L93 Difference]: Finished difference Result 141210 states and 208912 transitions. [2022-12-13 20:30:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:30:11,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2022-12-13 20:30:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:11,343 INFO L225 Difference]: With dead ends: 141210 [2022-12-13 20:30:11,343 INFO L226 Difference]: Without dead ends: 94424 [2022-12-13 20:30:11,375 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 20:30:11,376 INFO L413 NwaCegarLoop]: 1678 mSDtfsCounter, 739 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:11,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2532 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:30:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94424 states. [2022-12-13 20:30:19,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94424 to 94422. [2022-12-13 20:30:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94422 states, 94421 states have (on average 1.4717700511538747) internal successors, (138966), 94421 states have internal predecessors, (138966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:19,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94422 states to 94422 states and 138966 transitions. [2022-12-13 20:30:19,173 INFO L78 Accepts]: Start accepts. Automaton has 94422 states and 138966 transitions. Word has length 242 [2022-12-13 20:30:19,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:19,173 INFO L495 AbstractCegarLoop]: Abstraction has 94422 states and 138966 transitions. [2022-12-13 20:30:19,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:19,173 INFO L276 IsEmpty]: Start isEmpty. Operand 94422 states and 138966 transitions. [2022-12-13 20:30:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-12-13 20:30:19,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:19,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:19,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:30:19,239 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:19,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1722529222, now seen corresponding path program 1 times [2022-12-13 20:30:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:19,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384134776] [2022-12-13 20:30:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:19,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:19,302 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 20:30:19,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:19,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384134776] [2022-12-13 20:30:19,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384134776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:19,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:19,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:30:19,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663542251] [2022-12-13 20:30:19,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:19,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:30:19,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:19,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:30:19,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:30:19,305 INFO L87 Difference]: Start difference. First operand 94422 states and 138966 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:34,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:30:34,287 INFO L93 Difference]: Finished difference Result 282142 states and 415074 transitions. [2022-12-13 20:30:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:30:34,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 242 [2022-12-13 20:30:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:30:34,541 INFO L225 Difference]: With dead ends: 282142 [2022-12-13 20:30:34,541 INFO L226 Difference]: Without dead ends: 188382 [2022-12-13 20:30:34,609 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 20:30:34,610 INFO L413 NwaCegarLoop]: 1741 mSDtfsCounter, 851 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:30:34,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2626 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:30:34,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188382 states. [2022-12-13 20:30:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188382 to 94632. [2022-12-13 20:30:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94632 states, 94631 states have (on average 1.4718009954454672) internal successors, (139278), 94631 states have internal predecessors, (139278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94632 states to 94632 states and 139278 transitions. [2022-12-13 20:30:44,678 INFO L78 Accepts]: Start accepts. Automaton has 94632 states and 139278 transitions. Word has length 242 [2022-12-13 20:30:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:30:44,678 INFO L495 AbstractCegarLoop]: Abstraction has 94632 states and 139278 transitions. [2022-12-13 20:30:44,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 94632 states and 139278 transitions. [2022-12-13 20:30:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-13 20:30:44,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:30:44,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:44,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:30:44,746 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:30:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:44,746 INFO L85 PathProgramCache]: Analyzing trace with hash -106410204, now seen corresponding path program 1 times [2022-12-13 20:30:44,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:44,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840699189] [2022-12-13 20:30:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:44,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:44,805 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 20:30:44,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:44,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840699189] [2022-12-13 20:30:44,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840699189] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:44,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:44,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:30:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015879989] [2022-12-13 20:30:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:44,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:30:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:30:44,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:30:44,807 INFO L87 Difference]: Start difference. First operand 94632 states and 139278 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:31:02,465 INFO L93 Difference]: Finished difference Result 282330 states and 415280 transitions. [2022-12-13 20:31:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:31:02,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 243 [2022-12-13 20:31:02,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:31:02,711 INFO L225 Difference]: With dead ends: 282330 [2022-12-13 20:31:02,711 INFO L226 Difference]: Without dead ends: 188560 [2022-12-13 20:31:02,782 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 20:31:02,782 INFO L413 NwaCegarLoop]: 1741 mSDtfsCounter, 846 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:31:02,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2626 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:31:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188560 states. [2022-12-13 20:31:13,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188560 to 94862. [2022-12-13 20:31:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94862 states, 94861 states have (on average 1.4710154858160889) internal successors, (139542), 94861 states have internal predecessors, (139542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94862 states to 94862 states and 139542 transitions. [2022-12-13 20:31:13,647 INFO L78 Accepts]: Start accepts. Automaton has 94862 states and 139542 transitions. Word has length 243 [2022-12-13 20:31:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:31:13,647 INFO L495 AbstractCegarLoop]: Abstraction has 94862 states and 139542 transitions. [2022-12-13 20:31:13,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 94862 states and 139542 transitions. [2022-12-13 20:31:13,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-13 20:31:13,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:31:13,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:13,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:31:13,712 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:31:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:13,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2050277543, now seen corresponding path program 1 times [2022-12-13 20:31:13,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:13,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596115044] [2022-12-13 20:31:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:13,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:13,945 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 20:31:13,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:13,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596115044] [2022-12-13 20:31:13,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596115044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:13,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:13,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:31:13,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730503685] [2022-12-13 20:31:13,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:13,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:31:13,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:31:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:31:13,947 INFO L87 Difference]: Start difference. First operand 94862 states and 139542 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:34,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:31:34,271 INFO L93 Difference]: Finished difference Result 278429 states and 408759 transitions. [2022-12-13 20:31:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:31:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 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 244 [2022-12-13 20:31:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:31:34,517 INFO L225 Difference]: With dead ends: 278429 [2022-12-13 20:31:34,517 INFO L226 Difference]: Without dead ends: 184148 [2022-12-13 20:31:34,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:31:34,569 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 2840 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:31:34,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 2169 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:31:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184148 states. [2022-12-13 20:31:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184148 to 184146. [2022-12-13 20:31:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184146 states, 184145 states have (on average 1.4567433272692716) internal successors, (268252), 184145 states have internal predecessors, (268252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184146 states to 184146 states and 268252 transitions. [2022-12-13 20:31:55,753 INFO L78 Accepts]: Start accepts. Automaton has 184146 states and 268252 transitions. Word has length 244 [2022-12-13 20:31:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:31:55,754 INFO L495 AbstractCegarLoop]: Abstraction has 184146 states and 268252 transitions. [2022-12-13 20:31:55,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 5 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 184146 states and 268252 transitions. [2022-12-13 20:31:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 20:31:55,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:31:55,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:55,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:31:55,895 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:31:55,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:55,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1995922805, now seen corresponding path program 1 times [2022-12-13 20:31:55,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:55,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847770131] [2022-12-13 20:31:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:55,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:56,151 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 20:31:56,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:56,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847770131] [2022-12-13 20:31:56,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847770131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:56,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:56,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:31:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43491462] [2022-12-13 20:31:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:56,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:31:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:31:56,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:31:56,153 INFO L87 Difference]: Start difference. First operand 184146 states and 268252 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:19,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:32:19,809 INFO L93 Difference]: Finished difference Result 387527 states and 564650 transitions. [2022-12-13 20:32:19,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:32:19,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 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 246 [2022-12-13 20:32:19,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:32:20,111 INFO L225 Difference]: With dead ends: 387527 [2022-12-13 20:32:20,112 INFO L226 Difference]: Without dead ends: 204999 [2022-12-13 20:32:20,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:32:20,213 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1878 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:32:20,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 2232 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:32:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204999 states. [2022-12-13 20:32:42,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204999 to 184381. [2022-12-13 20:32:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184381 states, 184380 states have (on average 1.4558954333441805) internal successors, (268438), 184380 states have internal predecessors, (268438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184381 states to 184381 states and 268438 transitions. [2022-12-13 20:32:43,319 INFO L78 Accepts]: Start accepts. Automaton has 184381 states and 268438 transitions. Word has length 246 [2022-12-13 20:32:43,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:32:43,319 INFO L495 AbstractCegarLoop]: Abstraction has 184381 states and 268438 transitions. [2022-12-13 20:32:43,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 184381 states and 268438 transitions. [2022-12-13 20:32:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-13 20:32:43,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:32:43,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:43,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:32:43,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:32:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1124572823, now seen corresponding path program 1 times [2022-12-13 20:32:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:43,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538181454] [2022-12-13 20:32:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:43,531 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 20:32:43,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:43,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538181454] [2022-12-13 20:32:43,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538181454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:43,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:43,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:32:43,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317035723] [2022-12-13 20:32:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:32:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:43,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:32:43,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:32:43,534 INFO L87 Difference]: Start difference. First operand 184381 states and 268438 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:33:28,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:33:28,646 INFO L93 Difference]: Finished difference Result 546799 states and 795335 transitions. [2022-12-13 20:33:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:33:28,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 248 [2022-12-13 20:33:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:33:29,221 INFO L225 Difference]: With dead ends: 546799 [2022-12-13 20:33:29,221 INFO L226 Difference]: Without dead ends: 364896 [2022-12-13 20:33:29,356 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 20:33:29,357 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 818 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:33:29,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2593 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:33:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364896 states. [2022-12-13 20:33:56,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364896 to 184854. [2022-12-13 20:33:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184854 states, 184853 states have (on average 1.455313140711809) internal successors, (269019), 184853 states have internal predecessors, (269019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:33:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184854 states to 184854 states and 269019 transitions. [2022-12-13 20:33:57,115 INFO L78 Accepts]: Start accepts. Automaton has 184854 states and 269019 transitions. Word has length 248 [2022-12-13 20:33:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:33:57,115 INFO L495 AbstractCegarLoop]: Abstraction has 184854 states and 269019 transitions. [2022-12-13 20:33:57,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:33:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 184854 states and 269019 transitions. [2022-12-13 20:33:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-12-13 20:33:57,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:33:57,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:57,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:33:57,376 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:33:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash -764706277, now seen corresponding path program 1 times [2022-12-13 20:33:57,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:57,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184670579] [2022-12-13 20:33:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:57,462 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 20:33:57,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:57,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184670579] [2022-12-13 20:33:57,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184670579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:57,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:57,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:33:57,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839239132] [2022-12-13 20:33:57,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:57,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:33:57,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:57,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:33:57,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:33:57,464 INFO L87 Difference]: Start difference. First operand 184854 states and 269019 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:49,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:34:49,974 INFO L93 Difference]: Finished difference Result 549218 states and 798894 transitions. [2022-12-13 20:34:49,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:34:49,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2022-12-13 20:34:49,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:34:50,560 INFO L225 Difference]: With dead ends: 549218 [2022-12-13 20:34:50,560 INFO L226 Difference]: Without dead ends: 366953 [2022-12-13 20:34:50,699 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 20:34:50,699 INFO L413 NwaCegarLoop]: 1708 mSDtfsCounter, 813 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:34:50,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2593 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:34:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366953 states. [2022-12-13 20:35:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366953 to 185539. [2022-12-13 20:35:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185539 states, 185538 states have (on average 1.4542735180933286) internal successors, (269823), 185538 states have internal predecessors, (269823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:22,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185539 states to 185539 states and 269823 transitions. [2022-12-13 20:35:22,547 INFO L78 Accepts]: Start accepts. Automaton has 185539 states and 269823 transitions. Word has length 249 [2022-12-13 20:35:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:35:22,548 INFO L495 AbstractCegarLoop]: Abstraction has 185539 states and 269823 transitions. [2022-12-13 20:35:22,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand 185539 states and 269823 transitions. [2022-12-13 20:35:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-12-13 20:35:22,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:35:22,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:22,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:35:22,797 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:35:22,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:22,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1971875425, now seen corresponding path program 1 times [2022-12-13 20:35:22,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:22,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323267] [2022-12-13 20:35:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:22,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:22,893 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 20:35:22,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:22,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323267] [2022-12-13 20:35:22,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:22,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:22,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:35:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811479115] [2022-12-13 20:35:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:22,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:35:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:22,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:35:22,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:35:22,895 INFO L87 Difference]: Start difference. First operand 185539 states and 269823 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:36:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:18,809 INFO L93 Difference]: Finished difference Result 532232 states and 772790 transitions. [2022-12-13 20:36:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:36:18,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-12-13 20:36:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:19,353 INFO L225 Difference]: With dead ends: 532232 [2022-12-13 20:36:19,353 INFO L226 Difference]: Without dead ends: 349128 [2022-12-13 20:36:19,511 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 20:36:19,511 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 738 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:19,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 2567 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:36:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349128 states. [2022-12-13 20:37:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349128 to 349126. [2022-12-13 20:37:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349126 states, 349125 states have (on average 1.4412116004296456) internal successors, (503163), 349125 states have internal predecessors, (503163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:37:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349126 states to 349126 states and 503163 transitions. [2022-12-13 20:37:17,415 INFO L78 Accepts]: Start accepts. Automaton has 349126 states and 503163 transitions. Word has length 250 [2022-12-13 20:37:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:37:17,415 INFO L495 AbstractCegarLoop]: Abstraction has 349126 states and 503163 transitions. [2022-12-13 20:37:17,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:37:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 349126 states and 503163 transitions. [2022-12-13 20:37:17,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-12-13 20:37:17,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:37:17,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:17,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:37:17,886 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:37:17,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash -341020740, now seen corresponding path program 1 times [2022-12-13 20:37:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:17,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176533930] [2022-12-13 20:37:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:17,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:18,124 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 20:37:18,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:18,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176533930] [2022-12-13 20:37:18,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176533930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:18,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:18,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:37:18,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437065211] [2022-12-13 20:37:18,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:18,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:37:18,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:18,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:37:18,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:37:18,126 INFO L87 Difference]: Start difference. First operand 349126 states and 503163 transitions. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:38:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:38:21,042 INFO L93 Difference]: Finished difference Result 733466 states and 1057337 transitions. [2022-12-13 20:38:21,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:38:21,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 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 250 [2022-12-13 20:38:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:38:21,631 INFO L225 Difference]: With dead ends: 733466 [2022-12-13 20:38:21,631 INFO L226 Difference]: Without dead ends: 388740 [2022-12-13 20:38:21,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:38:21,842 INFO L413 NwaCegarLoop]: 1413 mSDtfsCounter, 1679 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:38:21,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 3101 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:38:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388740 states. [2022-12-13 20:39:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388740 to 348666. [2022-12-13 20:39:20,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348666 states, 348665 states have (on average 1.4404973255130282) internal successors, (502251), 348665 states have internal predecessors, (502251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:39:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348666 states to 348666 states and 502251 transitions. [2022-12-13 20:39:21,585 INFO L78 Accepts]: Start accepts. Automaton has 348666 states and 502251 transitions. Word has length 250 [2022-12-13 20:39:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:39:21,586 INFO L495 AbstractCegarLoop]: Abstraction has 348666 states and 502251 transitions. [2022-12-13 20:39:21,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:39:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 348666 states and 502251 transitions. [2022-12-13 20:39:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-13 20:39:21,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:39:21,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:39:21,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:39:21,877 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:39:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:39:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash -167057204, now seen corresponding path program 1 times [2022-12-13 20:39:21,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:39:21,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695292754] [2022-12-13 20:39:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:39:21,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:39:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:39:22,301 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 20:39:22,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:39:22,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695292754] [2022-12-13 20:39:22,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695292754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:39:22,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:39:22,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:39:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257035965] [2022-12-13 20:39:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:39:22,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:39:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:39:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:39:22,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:39:22,304 INFO L87 Difference]: Start difference. First operand 348666 states and 502251 transitions. Second operand has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:41:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:41:13,502 INFO L93 Difference]: Finished difference Result 1021424 states and 1468923 transitions. [2022-12-13 20:41:13,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:41:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 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 252 [2022-12-13 20:41:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:41:14,810 INFO L225 Difference]: With dead ends: 1021424 [2022-12-13 20:41:14,810 INFO L226 Difference]: Without dead ends: 677254 [2022-12-13 20:41:15,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:41:15,246 INFO L413 NwaCegarLoop]: 1401 mSDtfsCounter, 1980 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:41:15,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 3089 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:41:15,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677254 states.