./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro --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 64bit --witnessprinter.graph.data.programhash 1154fcaf4f1e2a94ab75d63eadbfeb4f62b370fe41855f83eea0be088d75fc24 --- 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-8393723 [2022-11-18 20:17:01,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:17:01,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:17:01,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:17:01,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:17:01,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:17:01,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:17:01,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:17:01,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:17:01,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:17:01,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:17:01,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:17:01,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:17:01,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:17:01,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:17:01,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:17:01,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:17:01,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:17:01,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:17:01,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:17:01,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:17:01,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:17:01,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:17:01,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:17:01,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:17:01,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:17:01,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:17:01,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:17:01,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:17:01,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:17:01,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:17:01,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:17:01,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:17:01,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:17:01,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:17:01,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:17:01,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:17:01,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:17:01,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:17:01,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:17:01,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:17:01,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:17:01,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:17:01,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:17:01,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:17:01,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:17:01,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:17:01,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:17:01,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:17:01,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:17:01,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:17:01,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:17:01,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:17:01,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:17:01,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:17:01,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:17:01,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:17:01,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:17:01,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:17:01,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:17:01,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:17:01,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:17:01,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:17:01,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:17:01,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:17:01,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:17:01,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:17:01,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:17:01,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:17:01,999 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:17:01,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:17:02,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:17:02,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1154fcaf4f1e2a94ab75d63eadbfeb4f62b370fe41855f83eea0be088d75fc24 [2022-11-18 20:17:02,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:17:02,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:17:02,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:17:02,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:17:02,384 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:17:02,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c [2022-11-18 20:17:02,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/data/8236d5603/8d042a92badb420c8d97f5ab99e85a30/FLAG3a21d3721 [2022-11-18 20:17:04,260 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:17:04,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c [2022-11-18 20:17:04,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/data/8236d5603/8d042a92badb420c8d97f5ab99e85a30/FLAG3a21d3721 [2022-11-18 20:17:04,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/data/8236d5603/8d042a92badb420c8d97f5ab99e85a30 [2022-11-18 20:17:04,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:17:04,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:17:04,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:04,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:17:04,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:17:04,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:04" (1/1) ... [2022-11-18 20:17:04,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa750eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:04, skipping insertion in model container [2022-11-18 20:17:04,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:04" (1/1) ... [2022-11-18 20:17:04,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:17:05,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:17:05,824 WARN L234 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_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c[1107,1120] [2022-11-18 20:17:08,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:08,967 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:17:08,984 WARN L234 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_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal190.c[1107,1120] [2022-11-18 20:17:11,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:11,278 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:17:11,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11 WrapperNode [2022-11-18 20:17:11,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:11,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:11,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:17:11,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:17:11,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:11,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:14,540 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56864 [2022-11-18 20:17:14,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:14,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:17:14,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:17:14,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:17:14,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:14,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:14,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:14,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:15,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:16,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:16,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:16,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:17,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:17:17,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:17:17,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:17:17,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:17:17,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (1/1) ... [2022-11-18 20:17:17,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:17:17,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:17,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:17,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9e5ad3f-f414-42d4-9cbf-306a2582ea3d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:17:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:17:17,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:17:22,755 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:17:22,758 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:18:13,480 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:18:13,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:18:13,554 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:18:13,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:13 BoogieIcfgContainer [2022-11-18 20:18:13,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:18:13,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:18:13,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:18:13,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:18:13,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:17:04" (1/3) ... [2022-11-18 20:18:13,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618a6565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:18:13, skipping insertion in model container [2022-11-18 20:18:13,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:11" (2/3) ... [2022-11-18 20:18:13,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618a6565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:18:13, skipping insertion in model container [2022-11-18 20:18:13,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:13" (3/3) ... [2022-11-18 20:18:13,580 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal190.c [2022-11-18 20:18:13,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:18:13,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:18:13,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:18:13,884 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;@3791c08c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:18:13,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:18:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 10814 states, 10812 states have (on average 1.6664816870144283) internal successors, (18018), 10813 states have internal predecessors, (18018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-11-18 20:18:13,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:18:13,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:13,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:18:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:14,007 INFO L85 PathProgramCache]: Analyzing trace with hash 638506737, now seen corresponding path program 1 times [2022-11-18 20:18:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:14,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290499139] [2022-11-18 20:18:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:14,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:23,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290499139] [2022-11-18 20:18:23,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290499139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:23,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:23,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:18:23,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791280146] [2022-11-18 20:18:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:23,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:18:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:23,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:18:23,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:18:23,884 INFO L87 Difference]: Start difference. First operand has 10814 states, 10812 states have (on average 1.6664816870144283) internal successors, (18018), 10813 states have internal predecessors, (18018), 0 states have call successors, (0), 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 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:25,205 INFO L93 Difference]: Finished difference Result 33316 states and 55522 transitions. [2022-11-18 20:18:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:18:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 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 597 [2022-11-18 20:18:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:18:25,321 INFO L225 Difference]: With dead ends: 33316 [2022-11-18 20:18:25,321 INFO L226 Difference]: Without dead ends: 22504 [2022-11-18 20:18:25,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:18:25,354 INFO L413 NwaCegarLoop]: 19490 mSDtfsCounter, 54012 mSDsluCounter, 20963 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54012 SdHoareTripleChecker+Valid, 40453 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:18:25,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54012 Valid, 40453 Invalid, 18 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:18:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2022-11-18 20:18:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 10812. [2022-11-18 20:18:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.666265840347794) internal successors, (18014), 10811 states have internal predecessors, (18014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:25,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18014 transitions. [2022-11-18 20:18:25,843 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18014 transitions. Word has length 597 [2022-11-18 20:18:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:18:25,847 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18014 transitions. [2022-11-18 20:18:25,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18014 transitions. [2022-11-18 20:18:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-18 20:18:25,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:18:25,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:25,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:18:25,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:18:25,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1679399133, now seen corresponding path program 1 times [2022-11-18 20:18:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:25,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308919290] [2022-11-18 20:18:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:29,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:29,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308919290] [2022-11-18 20:18:29,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308919290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:29,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:29,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:18:29,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580958067] [2022-11-18 20:18:29,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:29,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:18:29,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:18:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:18:29,352 INFO L87 Difference]: Start difference. First operand 10812 states and 18014 transitions. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:39,473 INFO L93 Difference]: Finished difference Result 42666 states and 70902 transitions. [2022-11-18 20:18:39,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:18:39,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 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 598 [2022-11-18 20:18:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:18:39,534 INFO L225 Difference]: With dead ends: 42666 [2022-11-18 20:18:39,534 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:18:39,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:18:39,561 INFO L413 NwaCegarLoop]: 34302 mSDtfsCounter, 84476 mSDsluCounter, 34305 mSDsCounter, 0 mSdLazyCounter, 4106 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84476 SdHoareTripleChecker+Valid, 68607 SdHoareTripleChecker+Invalid, 4676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 4106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:18:39,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84476 Valid, 68607 Invalid, 4676 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [570 Valid, 4106 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-11-18 20:18:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:18:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:18:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6661733419665157) internal successors, (18013), 10811 states have internal predecessors, (18013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18013 transitions. [2022-11-18 20:18:40,046 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18013 transitions. Word has length 598 [2022-11-18 20:18:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:18:40,047 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18013 transitions. [2022-11-18 20:18:40,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18013 transitions. [2022-11-18 20:18:40,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-18 20:18:40,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:18:40,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:40,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:18:40,068 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:18:40,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:40,082 INFO L85 PathProgramCache]: Analyzing trace with hash -255195573, now seen corresponding path program 1 times [2022-11-18 20:18:40,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484876905] [2022-11-18 20:18:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:40,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:42,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:42,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484876905] [2022-11-18 20:18:42,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484876905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:42,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:42,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:18:42,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768309646] [2022-11-18 20:18:42,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:42,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:18:42,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:42,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:18:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:18:42,958 INFO L87 Difference]: Start difference. First operand 10812 states and 18013 transitions. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:52,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:18:52,167 INFO L93 Difference]: Finished difference Result 32430 states and 54031 transitions. [2022-11-18 20:18:52,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:18:52,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 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 599 [2022-11-18 20:18:52,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:18:52,215 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:18:52,215 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:18:52,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:18:52,235 INFO L413 NwaCegarLoop]: 16286 mSDtfsCounter, 53178 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 4972 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53178 SdHoareTripleChecker+Valid, 31887 SdHoareTripleChecker+Invalid, 4974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:18:52,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53178 Valid, 31887 Invalid, 4974 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 4972 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-18 20:18:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:18:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:18:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6660808435852372) internal successors, (18012), 10811 states have internal predecessors, (18012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18012 transitions. [2022-11-18 20:18:52,516 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18012 transitions. Word has length 599 [2022-11-18 20:18:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:18:52,518 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18012 transitions. [2022-11-18 20:18:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18012 transitions. [2022-11-18 20:18:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2022-11-18 20:18:52,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:18:52,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:52,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:18:52,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:18:52,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1812927855, now seen corresponding path program 1 times [2022-11-18 20:18:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:52,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740115279] [2022-11-18 20:18:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:52,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:55,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:55,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740115279] [2022-11-18 20:18:55,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740115279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:55,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:55,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:18:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401972504] [2022-11-18 20:18:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:55,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:18:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:55,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:18:55,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:18:55,347 INFO L87 Difference]: Start difference. First operand 10812 states and 18012 transitions. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:04,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:04,403 INFO L93 Difference]: Finished difference Result 32430 states and 54028 transitions. [2022-11-18 20:19:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:04,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 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 600 [2022-11-18 20:19:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:04,457 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:19:04,458 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:19:04,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:04,483 INFO L413 NwaCegarLoop]: 16359 mSDtfsCounter, 87782 mSDsluCounter, 15600 mSDsCounter, 0 mSdLazyCounter, 4991 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87782 SdHoareTripleChecker+Valid, 31959 SdHoareTripleChecker+Invalid, 4993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:04,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87782 Valid, 31959 Invalid, 4993 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 4991 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-18 20:19:04,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:19:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:19:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.665988345203959) internal successors, (18011), 10811 states have internal predecessors, (18011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18011 transitions. [2022-11-18 20:19:04,870 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18011 transitions. Word has length 600 [2022-11-18 20:19:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:04,871 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18011 transitions. [2022-11-18 20:19:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18011 transitions. [2022-11-18 20:19:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-11-18 20:19:04,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:04,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:04,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:19:04,880 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1254003107, now seen corresponding path program 1 times [2022-11-18 20:19:04,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:04,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109620665] [2022-11-18 20:19:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:04,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:07,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:07,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109620665] [2022-11-18 20:19:07,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109620665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:07,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:07,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:07,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808681345] [2022-11-18 20:19:07,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:07,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:07,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:07,706 INFO L87 Difference]: Start difference. First operand 10812 states and 18011 transitions. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:17,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:17,639 INFO L93 Difference]: Finished difference Result 32430 states and 54025 transitions. [2022-11-18 20:19:17,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 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 601 [2022-11-18 20:19:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:17,682 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:19:17,682 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:19:17,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:17,695 INFO L413 NwaCegarLoop]: 31199 mSDtfsCounter, 36009 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 7218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36009 SdHoareTripleChecker+Valid, 46800 SdHoareTripleChecker+Invalid, 7220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:17,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36009 Valid, 46800 Invalid, 7220 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 7218 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-18 20:19:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:19:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:19:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6658958468226805) internal successors, (18010), 10811 states have internal predecessors, (18010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18010 transitions. [2022-11-18 20:19:17,952 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18010 transitions. Word has length 601 [2022-11-18 20:19:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18010 transitions. [2022-11-18 20:19:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18010 transitions. [2022-11-18 20:19:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-18 20:19:17,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:17,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:17,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:19:17,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:17,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash 74548605, now seen corresponding path program 1 times [2022-11-18 20:19:17,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:17,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877781775] [2022-11-18 20:19:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:17,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877781775] [2022-11-18 20:19:20,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877781775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:20,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:20,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:20,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556113372] [2022-11-18 20:19:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:20,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:20,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:20,371 INFO L87 Difference]: Start difference. First operand 10812 states and 18010 transitions. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:30,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:30,225 INFO L93 Difference]: Finished difference Result 32430 states and 54022 transitions. [2022-11-18 20:19:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:30,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 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 602 [2022-11-18 20:19:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:30,276 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:19:30,276 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:19:30,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:30,295 INFO L413 NwaCegarLoop]: 31199 mSDtfsCounter, 53598 mSDsluCounter, 15600 mSDsCounter, 0 mSdLazyCounter, 7215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53598 SdHoareTripleChecker+Valid, 46799 SdHoareTripleChecker+Invalid, 7217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:30,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53598 Valid, 46799 Invalid, 7217 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 7215 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-18 20:19:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:19:30,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:19:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6658033484414023) internal successors, (18009), 10811 states have internal predecessors, (18009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18009 transitions. [2022-11-18 20:19:30,712 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18009 transitions. Word has length 602 [2022-11-18 20:19:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:30,714 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18009 transitions. [2022-11-18 20:19:30,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18009 transitions. [2022-11-18 20:19:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-11-18 20:19:30,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:30,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:30,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:19:30,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:30,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash 583595197, now seen corresponding path program 1 times [2022-11-18 20:19:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:30,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393326760] [2022-11-18 20:19:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:30,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:33,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:33,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393326760] [2022-11-18 20:19:33,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393326760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:33,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:33,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:33,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441196563] [2022-11-18 20:19:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:33,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:33,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:33,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:33,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:33,467 INFO L87 Difference]: Start difference. First operand 10812 states and 18009 transitions. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:42,321 INFO L93 Difference]: Finished difference Result 32430 states and 54019 transitions. [2022-11-18 20:19:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:42,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 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 603 [2022-11-18 20:19:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:42,352 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:19:42,353 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:19:42,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:42,363 INFO L413 NwaCegarLoop]: 16416 mSDtfsCounter, 52975 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 5025 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52975 SdHoareTripleChecker+Valid, 32017 SdHoareTripleChecker+Invalid, 5027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:42,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52975 Valid, 32017 Invalid, 5027 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 5025 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-18 20:19:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:19:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:19:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6657108500601239) internal successors, (18008), 10811 states have internal predecessors, (18008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18008 transitions. [2022-11-18 20:19:42,605 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18008 transitions. Word has length 603 [2022-11-18 20:19:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:42,606 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18008 transitions. [2022-11-18 20:19:42,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18008 transitions. [2022-11-18 20:19:42,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-18 20:19:42,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:42,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:42,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:19:42,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:42,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1499961799, now seen corresponding path program 1 times [2022-11-18 20:19:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:42,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921735897] [2022-11-18 20:19:42,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:42,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:44,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:44,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921735897] [2022-11-18 20:19:44,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921735897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:44,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:44,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924050867] [2022-11-18 20:19:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:44,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:44,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:44,878 INFO L87 Difference]: Start difference. First operand 10812 states and 18008 transitions. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:54,252 INFO L93 Difference]: Finished difference Result 32430 states and 54016 transitions. [2022-11-18 20:19:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:54,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 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 604 [2022-11-18 20:19:54,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:54,283 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:19:54,283 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:19:54,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:54,297 INFO L413 NwaCegarLoop]: 31199 mSDtfsCounter, 36003 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 7209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36003 SdHoareTripleChecker+Valid, 46800 SdHoareTripleChecker+Invalid, 7211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:54,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36003 Valid, 46800 Invalid, 7211 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 7209 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-18 20:19:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:19:54,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:19:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6656183516788456) internal successors, (18007), 10811 states have internal predecessors, (18007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18007 transitions. [2022-11-18 20:19:54,689 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18007 transitions. Word has length 604 [2022-11-18 20:19:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:54,690 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18007 transitions. [2022-11-18 20:19:54,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18007 transitions. [2022-11-18 20:19:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-11-18 20:19:54,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:54,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:19:54,701 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash 876317715, now seen corresponding path program 1 times [2022-11-18 20:19:54,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:54,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500181979] [2022-11-18 20:19:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:54,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:56,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:56,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500181979] [2022-11-18 20:19:56,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500181979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:56,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:56,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186500859] [2022-11-18 20:19:56,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:56,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:19:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:19:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:19:56,931 INFO L87 Difference]: Start difference. First operand 10812 states and 18007 transitions. Second operand has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:05,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:05,990 INFO L93 Difference]: Finished difference Result 32430 states and 54013 transitions. [2022-11-18 20:20:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:05,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 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 605 [2022-11-18 20:20:05,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:06,005 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:20:06,005 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:20:06,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:06,014 INFO L413 NwaCegarLoop]: 16587 mSDtfsCounter, 52786 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 5033 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52786 SdHoareTripleChecker+Valid, 32188 SdHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:06,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52786 Valid, 32188 Invalid, 5035 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5033 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-18 20:20:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:20:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:20:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6655258532975672) internal successors, (18006), 10811 states have internal predecessors, (18006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18006 transitions. [2022-11-18 20:20:06,254 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18006 transitions. Word has length 605 [2022-11-18 20:20:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:06,256 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18006 transitions. [2022-11-18 20:20:06,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:06,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18006 transitions. [2022-11-18 20:20:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-11-18 20:20:06,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:06,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:06,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:20:06,269 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:06,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:06,270 INFO L85 PathProgramCache]: Analyzing trace with hash 748750831, now seen corresponding path program 1 times [2022-11-18 20:20:06,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:06,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382478063] [2022-11-18 20:20:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:06,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:08,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:08,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382478063] [2022-11-18 20:20:08,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382478063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:08,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:08,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:08,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966400007] [2022-11-18 20:20:08,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:08,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:08,808 INFO L87 Difference]: Start difference. First operand 10812 states and 18006 transitions. Second operand has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:17,295 INFO L93 Difference]: Finished difference Result 32430 states and 54010 transitions. [2022-11-18 20:20:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 0 states have call successors, (0), 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 606 [2022-11-18 20:20:17,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:17,319 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:20:17,319 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:20:17,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:17,332 INFO L413 NwaCegarLoop]: 16664 mSDtfsCounter, 86810 mSDsluCounter, 15600 mSDsCounter, 0 mSdLazyCounter, 5063 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86810 SdHoareTripleChecker+Valid, 32264 SdHoareTripleChecker+Invalid, 5065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:17,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86810 Valid, 32264 Invalid, 5065 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5063 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-18 20:20:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:20:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:20:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.665433354916289) internal successors, (18005), 10811 states have internal predecessors, (18005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18005 transitions. [2022-11-18 20:20:17,699 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18005 transitions. Word has length 606 [2022-11-18 20:20:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:17,700 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18005 transitions. [2022-11-18 20:20:17,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18005 transitions. [2022-11-18 20:20:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-18 20:20:17,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:17,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:20:17,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash 259261911, now seen corresponding path program 1 times [2022-11-18 20:20:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:17,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763908913] [2022-11-18 20:20:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:19,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763908913] [2022-11-18 20:20:19,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763908913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:19,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:19,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370911179] [2022-11-18 20:20:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:19,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:19,696 INFO L87 Difference]: Start difference. First operand 10812 states and 18005 transitions. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:27,566 INFO L93 Difference]: Finished difference Result 32430 states and 54007 transitions. [2022-11-18 20:20:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:27,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 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 607 [2022-11-18 20:20:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:27,584 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:20:27,584 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:20:27,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:27,593 INFO L413 NwaCegarLoop]: 16669 mSDtfsCounter, 86782 mSDsluCounter, 15600 mSDsCounter, 0 mSdLazyCounter, 5065 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86782 SdHoareTripleChecker+Valid, 32269 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:27,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86782 Valid, 32269 Invalid, 5067 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5065 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-18 20:20:27,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:20:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:20:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6653408565350107) internal successors, (18004), 10811 states have internal predecessors, (18004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18004 transitions. [2022-11-18 20:20:27,813 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18004 transitions. Word has length 607 [2022-11-18 20:20:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:27,814 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18004 transitions. [2022-11-18 20:20:27,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18004 transitions. [2022-11-18 20:20:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-11-18 20:20:27,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:27,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:27,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:20:27,822 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 351975995, now seen corresponding path program 1 times [2022-11-18 20:20:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075026542] [2022-11-18 20:20:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:27,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:29,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:29,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075026542] [2022-11-18 20:20:29,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075026542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:29,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:29,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:29,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075909712] [2022-11-18 20:20:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:29,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:29,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:29,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:29,655 INFO L87 Difference]: Start difference. First operand 10812 states and 18004 transitions. Second operand has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:38,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:38,672 INFO L93 Difference]: Finished difference Result 32430 states and 54004 transitions. [2022-11-18 20:20:38,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:38,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 0 states have call successors, (0), 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 608 [2022-11-18 20:20:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:38,690 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:20:38,690 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:20:38,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:38,699 INFO L413 NwaCegarLoop]: 16670 mSDtfsCounter, 52650 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 5071 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52650 SdHoareTripleChecker+Valid, 32271 SdHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:38,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52650 Valid, 32271 Invalid, 5073 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5071 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-18 20:20:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:20:38,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:20:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6652483581537323) internal successors, (18003), 10811 states have internal predecessors, (18003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18003 transitions. [2022-11-18 20:20:39,018 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18003 transitions. Word has length 608 [2022-11-18 20:20:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:39,019 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18003 transitions. [2022-11-18 20:20:39,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18003 transitions. [2022-11-18 20:20:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-18 20:20:39,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:39,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:39,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:20:39,027 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash -993325661, now seen corresponding path program 1 times [2022-11-18 20:20:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:39,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748251744] [2022-11-18 20:20:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:41,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748251744] [2022-11-18 20:20:41,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748251744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:41,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:41,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:41,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94957279] [2022-11-18 20:20:41,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:41,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:41,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:41,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:41,308 INFO L87 Difference]: Start difference. First operand 10812 states and 18003 transitions. Second operand has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:50,003 INFO L93 Difference]: Finished difference Result 32430 states and 54001 transitions. [2022-11-18 20:20:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:50,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 0 states have call successors, (0), 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 609 [2022-11-18 20:20:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:50,019 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:20:50,019 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:20:50,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:50,026 INFO L413 NwaCegarLoop]: 16675 mSDtfsCounter, 52638 mSDsluCounter, 15601 mSDsCounter, 0 mSdLazyCounter, 5073 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52638 SdHoareTripleChecker+Valid, 32276 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:50,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52638 Valid, 32276 Invalid, 5075 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5073 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-18 20:20:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:20:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:20:50,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.665155859772454) internal successors, (18002), 10811 states have internal predecessors, (18002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18002 transitions. [2022-11-18 20:20:50,246 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18002 transitions. Word has length 609 [2022-11-18 20:20:50,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:50,247 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18002 transitions. [2022-11-18 20:20:50,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18002 transitions. [2022-11-18 20:20:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-18 20:20:50,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:50,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:50,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:20:50,255 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash 775891079, now seen corresponding path program 1 times [2022-11-18 20:20:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:50,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157539386] [2022-11-18 20:20:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:50,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:20:53,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157539386] [2022-11-18 20:20:53,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157539386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:53,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:53,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:20:53,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564072225] [2022-11-18 20:20:53,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:53,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:20:53,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:20:53,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:20:53,782 INFO L87 Difference]: Start difference. First operand 10812 states and 18002 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:58,568 INFO L93 Difference]: Finished difference Result 22190 states and 36945 transitions. [2022-11-18 20:20:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:20:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 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 610 [2022-11-18 20:20:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:58,579 INFO L225 Difference]: With dead ends: 22190 [2022-11-18 20:20:58,579 INFO L226 Difference]: Without dead ends: 11380 [2022-11-18 20:20:58,585 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 [2022-11-18 20:20:58,586 INFO L413 NwaCegarLoop]: 16364 mSDtfsCounter, 35610 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35610 SdHoareTripleChecker+Valid, 17130 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:58,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35610 Valid, 17130 Invalid, 2758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-18 20:20:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11380 states. [2022-11-18 20:20:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11380 to 10812. [2022-11-18 20:20:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6650633613911756) internal successors, (18001), 10811 states have internal predecessors, (18001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18001 transitions. [2022-11-18 20:20:58,787 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18001 transitions. Word has length 610 [2022-11-18 20:20:58,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:58,788 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18001 transitions. [2022-11-18 20:20:58,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:20:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18001 transitions. [2022-11-18 20:20:58,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-18 20:20:58,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:58,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:58,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:20:58,795 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:58,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1439883397, now seen corresponding path program 1 times [2022-11-18 20:20:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:58,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745825740] [2022-11-18 20:20:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:01,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:01,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745825740] [2022-11-18 20:21:01,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745825740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:01,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:01,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:01,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790170638] [2022-11-18 20:21:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:01,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:01,859 INFO L87 Difference]: Start difference. First operand 10812 states and 18001 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:07,716 INFO L93 Difference]: Finished difference Result 22238 states and 37021 transitions. [2022-11-18 20:21:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:07,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 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 610 [2022-11-18 20:21:07,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:07,725 INFO L225 Difference]: With dead ends: 22238 [2022-11-18 20:21:07,726 INFO L226 Difference]: Without dead ends: 11428 [2022-11-18 20:21:07,730 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 [2022-11-18 20:21:07,731 INFO L413 NwaCegarLoop]: 16411 mSDtfsCounter, 35575 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35575 SdHoareTripleChecker+Valid, 17224 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:07,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35575 Valid, 17224 Invalid, 2819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-18 20:21:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11428 states. [2022-11-18 20:21:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11428 to 10812. [2022-11-18 20:21:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6649708630098974) internal successors, (18000), 10811 states have internal predecessors, (18000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 18000 transitions. [2022-11-18 20:21:07,867 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 18000 transitions. Word has length 610 [2022-11-18 20:21:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:07,868 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 18000 transitions. [2022-11-18 20:21:07,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 18000 transitions. [2022-11-18 20:21:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-18 20:21:07,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:07,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:07,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:21:07,875 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash 952809671, now seen corresponding path program 1 times [2022-11-18 20:21:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:07,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363260156] [2022-11-18 20:21:07,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:10,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:10,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363260156] [2022-11-18 20:21:10,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363260156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:10,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:10,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:10,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843812305] [2022-11-18 20:21:10,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:10,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:10,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:10,517 INFO L87 Difference]: Start difference. First operand 10812 states and 18000 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:15,485 INFO L93 Difference]: Finished difference Result 22286 states and 37096 transitions. [2022-11-18 20:21:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:15,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 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 610 [2022-11-18 20:21:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:15,499 INFO L225 Difference]: With dead ends: 22286 [2022-11-18 20:21:15,499 INFO L226 Difference]: Without dead ends: 11476 [2022-11-18 20:21:15,507 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 [2022-11-18 20:21:15,508 INFO L413 NwaCegarLoop]: 16477 mSDtfsCounter, 35539 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 2839 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35539 SdHoareTripleChecker+Valid, 17356 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:15,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35539 Valid, 17356 Invalid, 2840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2839 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 20:21:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11476 states. [2022-11-18 20:21:15,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11476 to 10812. [2022-11-18 20:21:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.664878364628619) internal successors, (17999), 10811 states have internal predecessors, (17999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17999 transitions. [2022-11-18 20:21:15,643 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17999 transitions. Word has length 610 [2022-11-18 20:21:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:15,644 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 17999 transitions. [2022-11-18 20:21:15,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17999 transitions. [2022-11-18 20:21:15,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-18 20:21:15,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:15,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:15,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:21:15,652 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1146928759, now seen corresponding path program 1 times [2022-11-18 20:21:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768061362] [2022-11-18 20:21:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:18,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:18,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768061362] [2022-11-18 20:21:18,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768061362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:18,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:18,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:18,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067718174] [2022-11-18 20:21:18,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:18,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:18,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:18,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:18,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:18,311 INFO L87 Difference]: Start difference. First operand 10812 states and 17999 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:23,451 INFO L93 Difference]: Finished difference Result 32430 states and 53989 transitions. [2022-11-18 20:21:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:23,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 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 610 [2022-11-18 20:21:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:23,468 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:21:23,468 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:21:23,479 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 [2022-11-18 20:21:23,479 INFO L413 NwaCegarLoop]: 17278 mSDtfsCounter, 52855 mSDsluCounter, 16572 mSDsCounter, 0 mSdLazyCounter, 2941 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52855 SdHoareTripleChecker+Valid, 33850 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:23,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52855 Valid, 33850 Invalid, 2942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2941 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 20:21:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:21:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:21:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6647858662473407) internal successors, (17998), 10811 states have internal predecessors, (17998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:23,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17998 transitions. [2022-11-18 20:21:23,638 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17998 transitions. Word has length 610 [2022-11-18 20:21:23,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:23,638 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 17998 transitions. [2022-11-18 20:21:23,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17998 transitions. [2022-11-18 20:21:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-18 20:21:23,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:23,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:23,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:21:23,644 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:23,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:23,645 INFO L85 PathProgramCache]: Analyzing trace with hash 834200269, now seen corresponding path program 1 times [2022-11-18 20:21:23,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:23,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292279122] [2022-11-18 20:21:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:23,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:25,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:25,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292279122] [2022-11-18 20:21:25,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292279122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:25,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:25,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:21:25,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629340795] [2022-11-18 20:21:25,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:21:25,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:21:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:21:25,615 INFO L87 Difference]: Start difference. First operand 10812 states and 17998 transitions. Second operand has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:31,295 INFO L93 Difference]: Finished difference Result 32430 states and 53986 transitions. [2022-11-18 20:21:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 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 611 [2022-11-18 20:21:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:31,317 INFO L225 Difference]: With dead ends: 32430 [2022-11-18 20:21:31,317 INFO L226 Difference]: Without dead ends: 21620 [2022-11-18 20:21:31,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:21:31,329 INFO L413 NwaCegarLoop]: 17729 mSDtfsCounter, 86849 mSDsluCounter, 16572 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86849 SdHoareTripleChecker+Valid, 34301 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:31,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86849 Valid, 34301 Invalid, 2978 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 20:21:31,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2022-11-18 20:21:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 10812. [2022-11-18 20:21:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6646933678660623) internal successors, (17997), 10811 states have internal predecessors, (17997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17997 transitions. [2022-11-18 20:21:31,544 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17997 transitions. Word has length 611 [2022-11-18 20:21:31,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:31,545 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 17997 transitions. [2022-11-18 20:21:31,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:31,546 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17997 transitions. [2022-11-18 20:21:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-18 20:21:31,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:31,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:31,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:21:31,557 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 567432965, now seen corresponding path program 1 times [2022-11-18 20:21:31,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:31,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080145600] [2022-11-18 20:21:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:31,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:34,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:34,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080145600] [2022-11-18 20:21:34,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080145600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:34,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:34,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001007365] [2022-11-18 20:21:34,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:34,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:34,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:34,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:34,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:34,296 INFO L87 Difference]: Start difference. First operand 10812 states and 17997 transitions. Second operand has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:38,681 INFO L93 Difference]: Finished difference Result 21622 states and 35992 transitions. [2022-11-18 20:21:38,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:38,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 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 612 [2022-11-18 20:21:38,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:38,697 INFO L225 Difference]: With dead ends: 21622 [2022-11-18 20:21:38,697 INFO L226 Difference]: Without dead ends: 10812 [2022-11-18 20:21:38,708 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 [2022-11-18 20:21:38,709 INFO L413 NwaCegarLoop]: 16573 mSDtfsCounter, 17672 mSDsluCounter, 16572 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17672 SdHoareTripleChecker+Valid, 33145 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:38,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17672 Valid, 33145 Invalid, 2842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-18 20:21:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10812 states. [2022-11-18 20:21:38,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10812 to 10812. [2022-11-18 20:21:38,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.664600869484784) internal successors, (17996), 10811 states have internal predecessors, (17996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17996 transitions. [2022-11-18 20:21:38,890 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17996 transitions. Word has length 612 [2022-11-18 20:21:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:38,891 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 17996 transitions. [2022-11-18 20:21:38,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:38,892 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17996 transitions. [2022-11-18 20:21:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-18 20:21:38,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:38,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:38,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:21:38,900 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:38,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:38,901 INFO L85 PathProgramCache]: Analyzing trace with hash 834606787, now seen corresponding path program 1 times [2022-11-18 20:21:38,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:38,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591420101] [2022-11-18 20:21:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:38,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:21:41,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:21:41,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591420101] [2022-11-18 20:21:41,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591420101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:41,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:41,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:21:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297499929] [2022-11-18 20:21:41,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:41,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:21:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:21:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:21:41,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:21:41,547 INFO L87 Difference]: Start difference. First operand 10812 states and 17996 transitions. Second operand has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:45,576 INFO L93 Difference]: Finished difference Result 21622 states and 35990 transitions. [2022-11-18 20:21:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:21:45,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 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 612 [2022-11-18 20:21:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:45,588 INFO L225 Difference]: With dead ends: 21622 [2022-11-18 20:21:45,588 INFO L226 Difference]: Without dead ends: 10812 [2022-11-18 20:21:45,595 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 [2022-11-18 20:21:45,596 INFO L413 NwaCegarLoop]: 16573 mSDtfsCounter, 17462 mSDsluCounter, 16572 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17462 SdHoareTripleChecker+Valid, 33145 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:45,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17462 Valid, 33145 Invalid, 2840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2840 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-18 20:21:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10812 states. [2022-11-18 20:21:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10812 to 10812. [2022-11-18 20:21:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 10811 states have (on average 1.6645083711035056) internal successors, (17995), 10811 states have internal predecessors, (17995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17995 transitions. [2022-11-18 20:21:45,775 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17995 transitions. Word has length 612 [2022-11-18 20:21:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:45,776 INFO L495 AbstractCegarLoop]: Abstraction has 10812 states and 17995 transitions. [2022-11-18 20:21:45,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:21:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17995 transitions. [2022-11-18 20:21:45,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-18 20:21:45,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:45,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:45,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:21:45,785 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1074846533, now seen corresponding path program 1 times [2022-11-18 20:21:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:21:45,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559164502] [2022-11-18 20:21:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:45,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:21:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat