./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d26a7b46bddf6c261a466d1462327f17b82fcb8ce3fd85c9d86242e35c98838f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:09:09,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:09:09,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:09:09,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:09:09,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:09:09,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:09:09,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:09:09,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:09:09,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:09:09,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:09:09,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:09:09,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:09:09,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:09:09,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:09:09,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:09:09,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:09:09,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:09:09,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:09:09,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:09:09,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:09:09,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:09:09,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:09:09,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:09:09,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:09:09,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:09:09,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:09:09,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:09:09,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:09:09,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:09:09,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:09:09,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:09:09,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:09:09,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:09:09,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:09:09,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:09:09,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:09:09,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:09:09,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:09:09,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:09:09,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:09:09,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:09:09,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:09:09,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:09:09,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:09:09,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:09:09,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:09:09,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:09:09,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:09:09,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:09:09,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:09:09,927 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:09:09,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:09:09,928 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:09:09,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:09:09,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:09:09,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:09:09,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:09:09,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:09:09,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:09:09,929 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:09:09,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:09:09,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:09:09,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:09:09,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:09:09,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:09:09,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:09:09,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:09:09,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:09:09,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:09:09,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:09:09,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:09:09,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:09:09,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:09:09,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:09:09,932 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:09:09,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:09:09,932 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:09:09,933 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d26a7b46bddf6c261a466d1462327f17b82fcb8ce3fd85c9d86242e35c98838f [2022-12-13 22:09:10,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:09:10,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:09:10,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:09:10,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:09:10,137 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:09:10,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-12-13 22:09:12,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:09:13,087 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:09:13,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-12-13 22:09:13,106 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/data/8c5812d41/46574d896cc34aaf81edb335c9458e7d/FLAGce46da724 [2022-12-13 22:09:13,117 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/data/8c5812d41/46574d896cc34aaf81edb335c9458e7d [2022-12-13 22:09:13,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:09:13,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:09:13,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:09:13,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:09:13,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:09:13,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:09:13" (1/1) ... [2022-12-13 22:09:13,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387d0973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:13, skipping insertion in model container [2022-12-13 22:09:13,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:09:13" (1/1) ... [2022-12-13 22:09:13,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:09:13,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:09:13,464 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[20528,20541] [2022-12-13 22:09:13,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[27818,27831] [2022-12-13 22:09:14,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:09:14,038 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:09:14,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[20528,20541] [2022-12-13 22:09:14,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[27818,27831] [2022-12-13 22:09:14,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:09:14,485 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:09:14,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14 WrapperNode [2022-12-13 22:09:14,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:09:14,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:09:14,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:09:14,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:09:14,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,726 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5178 [2022-12-13 22:09:14,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:09:14,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:09:14,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:09:14,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:09:14,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:14,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:15,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:09:15,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:09:15,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:09:15,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:09:15,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (1/1) ... [2022-12-13 22:09:15,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:09:15,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:09:15,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:09:15,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:09:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:09:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:09:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:09:15,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:09:15,180 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:09:15,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:09:18,681 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:09:18,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:09:18,697 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:09:18,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:09:18 BoogieIcfgContainer [2022-12-13 22:09:18,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:09:18,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:09:18,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:09:18,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:09:18,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:09:13" (1/3) ... [2022-12-13 22:09:18,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c79c6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:09:18, skipping insertion in model container [2022-12-13 22:09:18,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:09:14" (2/3) ... [2022-12-13 22:09:18,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c79c6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:09:18, skipping insertion in model container [2022-12-13 22:09:18,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:09:18" (3/3) ... [2022-12-13 22:09:18,708 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-12-13 22:09:18,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:09:18,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:09:18,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:09:18,786 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;@3155cd83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:09:18,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:09:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 22:09:18,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:18,799 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] [2022-12-13 22:09:18,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash 495960789, now seen corresponding path program 1 times [2022-12-13 22:09:18,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:18,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307685030] [2022-12-13 22:09:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:19,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307685030] [2022-12-13 22:09:19,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307685030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:19,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:19,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:09:19,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264799723] [2022-12-13 22:09:19,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:19,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:09:19,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:09:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:09:19,035 INFO L87 Difference]: Start difference. First operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:19,087 INFO L93 Difference]: Finished difference Result 1802 states and 3420 transitions. [2022-12-13 22:09:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:09:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-12-13 22:09:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:19,100 INFO L225 Difference]: With dead ends: 1802 [2022-12-13 22:09:19,100 INFO L226 Difference]: Without dead ends: 864 [2022-12-13 22:09:19,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:09:19,106 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:19,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-12-13 22:09:19,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2022-12-13 22:09:19,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8932714617169373) internal successors, (1632), 863 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1632 transitions. [2022-12-13 22:09:19,175 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1632 transitions. Word has length 28 [2022-12-13 22:09:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1632 transitions. [2022-12-13 22:09:19,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1632 transitions. [2022-12-13 22:09:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 22:09:19,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:19,178 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] [2022-12-13 22:09:19,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:09:19,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:19,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash 714815507, now seen corresponding path program 1 times [2022-12-13 22:09:19,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:19,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382888640] [2022-12-13 22:09:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:19,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:19,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:19,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382888640] [2022-12-13 22:09:19,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382888640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:19,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:19,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:09:19,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120214935] [2022-12-13 22:09:19,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:19,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:09:19,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:19,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:09:19,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:09:19,351 INFO L87 Difference]: Start difference. First operand 864 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:19,457 INFO L93 Difference]: Finished difference Result 922 states and 1723 transitions. [2022-12-13 22:09:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:09:19,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-12-13 22:09:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:19,460 INFO L225 Difference]: With dead ends: 922 [2022-12-13 22:09:19,461 INFO L226 Difference]: Without dead ends: 864 [2022-12-13 22:09:19,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:09:19,462 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 3 mSDsluCounter, 4837 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6467 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:19,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6467 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:19,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-12-13 22:09:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2022-12-13 22:09:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8352668213457077) internal successors, (1582), 863 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1582 transitions. [2022-12-13 22:09:19,479 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1582 transitions. Word has length 28 [2022-12-13 22:09:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:19,479 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1582 transitions. [2022-12-13 22:09:19,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1582 transitions. [2022-12-13 22:09:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 22:09:19,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:19,481 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] [2022-12-13 22:09:19,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:09:19,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash -66488912, now seen corresponding path program 1 times [2022-12-13 22:09:19,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:19,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157710902] [2022-12-13 22:09:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:19,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:19,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:19,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157710902] [2022-12-13 22:09:19,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157710902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:19,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:19,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:19,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562063493] [2022-12-13 22:09:19,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:19,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:09:19,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:19,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:09:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:09:19,681 INFO L87 Difference]: Start difference. First operand 864 states and 1582 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:25,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:25,478 INFO L93 Difference]: Finished difference Result 3119 states and 5891 transitions. [2022-12-13 22:09:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:09:25,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-12-13 22:09:25,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:25,484 INFO L225 Difference]: With dead ends: 3119 [2022-12-13 22:09:25,484 INFO L226 Difference]: Without dead ends: 2366 [2022-12-13 22:09:25,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:09:25,486 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 2461 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:25,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 854 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-13 22:09:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-12-13 22:09:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2022-12-13 22:09:25,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2364 states have (on average 1.5685279187817258) internal successors, (3708), 2365 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3708 transitions. [2022-12-13 22:09:25,533 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3708 transitions. Word has length 63 [2022-12-13 22:09:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:25,533 INFO L495 AbstractCegarLoop]: Abstraction has 2366 states and 3708 transitions. [2022-12-13 22:09:25,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3708 transitions. [2022-12-13 22:09:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 22:09:25,535 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:25,535 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] [2022-12-13 22:09:25,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:09:25,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -585081934, now seen corresponding path program 1 times [2022-12-13 22:09:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054091564] [2022-12-13 22:09:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:25,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:25,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:25,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054091564] [2022-12-13 22:09:25,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054091564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:25,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:25,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:09:25,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091939425] [2022-12-13 22:09:25,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:25,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:09:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:25,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:09:25,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:09:25,729 INFO L87 Difference]: Start difference. First operand 2366 states and 3708 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:26,101 INFO L93 Difference]: Finished difference Result 3122 states and 4926 transitions. [2022-12-13 22:09:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 22:09:26,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-13 22:09:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:26,112 INFO L225 Difference]: With dead ends: 3122 [2022-12-13 22:09:26,112 INFO L226 Difference]: Without dead ends: 3068 [2022-12-13 22:09:26,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-12-13 22:09:26,114 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 11503 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11503 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:26,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11503 Valid, 5134 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 22:09:26,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2022-12-13 22:09:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2418. [2022-12-13 22:09:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2416 states have (on average 1.5695364238410596) internal successors, (3792), 2417 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3792 transitions. [2022-12-13 22:09:26,160 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3792 transitions. Word has length 77 [2022-12-13 22:09:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:26,161 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3792 transitions. [2022-12-13 22:09:26,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3792 transitions. [2022-12-13 22:09:26,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 22:09:26,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:26,162 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] [2022-12-13 22:09:26,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:09:26,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:26,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:26,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1038714270, now seen corresponding path program 1 times [2022-12-13 22:09:26,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:26,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911399023] [2022-12-13 22:09:26,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:26,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:26,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911399023] [2022-12-13 22:09:26,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911399023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:26,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:26,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:26,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919572060] [2022-12-13 22:09:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:26,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:26,229 INFO L87 Difference]: Start difference. First operand 2418 states and 3792 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:26,277 INFO L93 Difference]: Finished difference Result 2619 states and 4115 transitions. [2022-12-13 22:09:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:26,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-12-13 22:09:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:26,283 INFO L225 Difference]: With dead ends: 2619 [2022-12-13 22:09:26,283 INFO L226 Difference]: Without dead ends: 2513 [2022-12-13 22:09:26,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:26,285 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:26,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-12-13 22:09:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2022-12-13 22:09:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.570346751693902) internal successors, (3940), 2510 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3940 transitions. [2022-12-13 22:09:26,333 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3940 transitions. Word has length 79 [2022-12-13 22:09:26,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:26,334 INFO L495 AbstractCegarLoop]: Abstraction has 2511 states and 3940 transitions. [2022-12-13 22:09:26,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3940 transitions. [2022-12-13 22:09:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 22:09:26,335 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:26,335 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] [2022-12-13 22:09:26,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:09:26,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:26,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash -972220758, now seen corresponding path program 1 times [2022-12-13 22:09:26,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:26,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929931294] [2022-12-13 22:09:26,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:26,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:26,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:26,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929931294] [2022-12-13 22:09:26,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929931294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:26,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:26,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:09:26,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277638401] [2022-12-13 22:09:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:26,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:09:26,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:26,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:09:26,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:09:26,616 INFO L87 Difference]: Start difference. First operand 2511 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:26,919 INFO L93 Difference]: Finished difference Result 2712 states and 4260 transitions. [2022-12-13 22:09:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:09:26,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-12-13 22:09:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:26,928 INFO L225 Difference]: With dead ends: 2712 [2022-12-13 22:09:26,928 INFO L226 Difference]: Without dead ends: 2513 [2022-12-13 22:09:26,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-12-13 22:09:26,930 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 1559 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:26,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 2168 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:09:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-12-13 22:09:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2022-12-13 22:09:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.5695496213630928) internal successors, (3938), 2510 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3938 transitions. [2022-12-13 22:09:26,993 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3938 transitions. Word has length 79 [2022-12-13 22:09:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:26,993 INFO L495 AbstractCegarLoop]: Abstraction has 2511 states and 3938 transitions. [2022-12-13 22:09:26,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3938 transitions. [2022-12-13 22:09:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 22:09:26,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:26,994 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] [2022-12-13 22:09:26,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:09:26,995 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash -488795339, now seen corresponding path program 1 times [2022-12-13 22:09:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:26,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922843803] [2022-12-13 22:09:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:26,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:27,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922843803] [2022-12-13 22:09:27,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922843803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:27,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:27,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 22:09:27,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075979582] [2022-12-13 22:09:27,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:27,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 22:09:27,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 22:09:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:09:27,189 INFO L87 Difference]: Start difference. First operand 2511 states and 3938 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:27,369 INFO L93 Difference]: Finished difference Result 2707 states and 4245 transitions. [2022-12-13 22:09:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 22:09:27,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-12-13 22:09:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:27,375 INFO L225 Difference]: With dead ends: 2707 [2022-12-13 22:09:27,375 INFO L226 Difference]: Without dead ends: 2705 [2022-12-13 22:09:27,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:09:27,376 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 514 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 10866 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:27,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 10866 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-12-13 22:09:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2517. [2022-12-13 22:09:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5677932405566601) internal successors, (3943), 2516 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3943 transitions. [2022-12-13 22:09:27,431 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3943 transitions. Word has length 80 [2022-12-13 22:09:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:27,431 INFO L495 AbstractCegarLoop]: Abstraction has 2517 states and 3943 transitions. [2022-12-13 22:09:27,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3943 transitions. [2022-12-13 22:09:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:27,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:27,432 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] [2022-12-13 22:09:27,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:09:27,432 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:27,432 INFO L85 PathProgramCache]: Analyzing trace with hash 295676394, now seen corresponding path program 1 times [2022-12-13 22:09:27,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:27,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010695061] [2022-12-13 22:09:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:27,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:27,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010695061] [2022-12-13 22:09:27,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010695061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:27,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:27,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:27,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735058494] [2022-12-13 22:09:27,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:27,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:27,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:27,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:27,478 INFO L87 Difference]: Start difference. First operand 2517 states and 3943 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:27,538 INFO L93 Difference]: Finished difference Result 2735 states and 4284 transitions. [2022-12-13 22:09:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:27,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:27,544 INFO L225 Difference]: With dead ends: 2735 [2022-12-13 22:09:27,544 INFO L226 Difference]: Without dead ends: 2623 [2022-12-13 22:09:27,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:27,546 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:27,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:27,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2022-12-13 22:09:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2621. [2022-12-13 22:09:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2619 states have (on average 1.5670103092783505) internal successors, (4104), 2620 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 4104 transitions. [2022-12-13 22:09:27,608 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 4104 transitions. Word has length 81 [2022-12-13 22:09:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:27,608 INFO L495 AbstractCegarLoop]: Abstraction has 2621 states and 4104 transitions. [2022-12-13 22:09:27,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 4104 transitions. [2022-12-13 22:09:27,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:27,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:27,609 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] [2022-12-13 22:09:27,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 22:09:27,609 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2057221398, now seen corresponding path program 1 times [2022-12-13 22:09:27,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:27,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672818217] [2022-12-13 22:09:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:27,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:27,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672818217] [2022-12-13 22:09:27,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672818217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:27,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:27,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828268158] [2022-12-13 22:09:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:27,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:27,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:27,653 INFO L87 Difference]: Start difference. First operand 2621 states and 4104 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:27,739 INFO L93 Difference]: Finished difference Result 3211 states and 5024 transitions. [2022-12-13 22:09:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:27,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:27,745 INFO L225 Difference]: With dead ends: 3211 [2022-12-13 22:09:27,745 INFO L226 Difference]: Without dead ends: 2904 [2022-12-13 22:09:27,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:27,747 INFO L413 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:27,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:27,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2022-12-13 22:09:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2022-12-13 22:09:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2900 states have (on average 1.5641379310344827) internal successors, (4536), 2901 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4536 transitions. [2022-12-13 22:09:27,858 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4536 transitions. Word has length 81 [2022-12-13 22:09:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:27,859 INFO L495 AbstractCegarLoop]: Abstraction has 2902 states and 4536 transitions. [2022-12-13 22:09:27,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4536 transitions. [2022-12-13 22:09:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:27,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:27,859 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] [2022-12-13 22:09:27,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 22:09:27,860 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:27,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1894306838, now seen corresponding path program 1 times [2022-12-13 22:09:27,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:27,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606151524] [2022-12-13 22:09:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:27,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:27,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:27,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606151524] [2022-12-13 22:09:27,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606151524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:27,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:27,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:27,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879217442] [2022-12-13 22:09:27,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:27,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:27,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:27,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:27,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:27,902 INFO L87 Difference]: Start difference. First operand 2902 states and 4536 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:28,044 INFO L93 Difference]: Finished difference Result 4030 states and 6278 transitions. [2022-12-13 22:09:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:28,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:28,051 INFO L225 Difference]: With dead ends: 4030 [2022-12-13 22:09:28,052 INFO L226 Difference]: Without dead ends: 3442 [2022-12-13 22:09:28,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:28,054 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:28,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:28,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-12-13 22:09:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2022-12-13 22:09:28,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.556719022687609) internal successors, (5352), 3439 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5352 transitions. [2022-12-13 22:09:28,211 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5352 transitions. Word has length 81 [2022-12-13 22:09:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:28,211 INFO L495 AbstractCegarLoop]: Abstraction has 3440 states and 5352 transitions. [2022-12-13 22:09:28,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5352 transitions. [2022-12-13 22:09:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:28,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:28,212 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] [2022-12-13 22:09:28,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 22:09:28,212 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1630450454, now seen corresponding path program 1 times [2022-12-13 22:09:28,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:28,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171886419] [2022-12-13 22:09:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:28,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:28,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171886419] [2022-12-13 22:09:28,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171886419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:28,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:28,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:28,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501243004] [2022-12-13 22:09:28,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:28,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:28,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:28,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:28,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:28,262 INFO L87 Difference]: Start difference. First operand 3440 states and 5352 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:28,506 INFO L93 Difference]: Finished difference Result 5596 states and 8642 transitions. [2022-12-13 22:09:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:28,512 INFO L225 Difference]: With dead ends: 5596 [2022-12-13 22:09:28,512 INFO L226 Difference]: Without dead ends: 4470 [2022-12-13 22:09:28,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:28,515 INFO L413 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:28,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2022-12-13 22:09:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4468. [2022-12-13 22:09:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 4466 states have (on average 1.542319749216301) internal successors, (6888), 4467 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6888 transitions. [2022-12-13 22:09:28,769 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6888 transitions. Word has length 81 [2022-12-13 22:09:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:28,769 INFO L495 AbstractCegarLoop]: Abstraction has 4468 states and 6888 transitions. [2022-12-13 22:09:28,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6888 transitions. [2022-12-13 22:09:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:28,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:28,771 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] [2022-12-13 22:09:28,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 22:09:28,771 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1687310058, now seen corresponding path program 1 times [2022-12-13 22:09:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:28,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876619943] [2022-12-13 22:09:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:28,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:28,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:28,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876619943] [2022-12-13 22:09:28,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876619943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:28,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:28,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:28,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196220285] [2022-12-13 22:09:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:28,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:28,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:28,817 INFO L87 Difference]: Start difference. First operand 4468 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:29,270 INFO L93 Difference]: Finished difference Result 8584 states and 13082 transitions. [2022-12-13 22:09:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:29,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:29,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:29,279 INFO L225 Difference]: With dead ends: 8584 [2022-12-13 22:09:29,279 INFO L226 Difference]: Without dead ends: 6430 [2022-12-13 22:09:29,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:29,282 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:29,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2022-12-13 22:09:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6428. [2022-12-13 22:09:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 6426 states have (on average 1.5200746965452847) internal successors, (9768), 6427 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 9768 transitions. [2022-12-13 22:09:29,739 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 9768 transitions. Word has length 81 [2022-12-13 22:09:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:29,740 INFO L495 AbstractCegarLoop]: Abstraction has 6428 states and 9768 transitions. [2022-12-13 22:09:29,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 9768 transitions. [2022-12-13 22:09:29,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:29,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:29,740 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] [2022-12-13 22:09:29,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 22:09:29,741 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:29,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:29,741 INFO L85 PathProgramCache]: Analyzing trace with hash -826724374, now seen corresponding path program 1 times [2022-12-13 22:09:29,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:29,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106200192] [2022-12-13 22:09:29,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:29,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:29,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106200192] [2022-12-13 22:09:29,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106200192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:29,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:29,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202272969] [2022-12-13 22:09:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:29,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:29,782 INFO L87 Difference]: Start difference. First operand 6428 states and 9768 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:30,696 INFO L93 Difference]: Finished difference Result 14272 states and 21386 transitions. [2022-12-13 22:09:30,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:30,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:30,709 INFO L225 Difference]: With dead ends: 14272 [2022-12-13 22:09:30,709 INFO L226 Difference]: Without dead ends: 10158 [2022-12-13 22:09:30,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:30,713 INFO L413 NwaCegarLoop]: 1638 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:30,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2022-12-13 22:09:31,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10156. [2022-12-13 22:09:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10156 states, 10154 states have (on average 1.4914319480007878) internal successors, (15144), 10155 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10156 states to 10156 states and 15144 transitions. [2022-12-13 22:09:31,694 INFO L78 Accepts]: Start accepts. Automaton has 10156 states and 15144 transitions. Word has length 81 [2022-12-13 22:09:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:31,694 INFO L495 AbstractCegarLoop]: Abstraction has 10156 states and 15144 transitions. [2022-12-13 22:09:31,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:31,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10156 states and 15144 transitions. [2022-12-13 22:09:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 22:09:31,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:31,695 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] [2022-12-13 22:09:31,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 22:09:31,695 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -392188438, now seen corresponding path program 1 times [2022-12-13 22:09:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:31,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281173863] [2022-12-13 22:09:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:31,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:31,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281173863] [2022-12-13 22:09:31,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281173863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:31,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:31,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:09:31,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057287737] [2022-12-13 22:09:31,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:31,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:31,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:31,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:31,737 INFO L87 Difference]: Start difference. First operand 10156 states and 15144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:33,635 INFO L93 Difference]: Finished difference Result 25072 states and 36842 transitions. [2022-12-13 22:09:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 22:09:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:33,655 INFO L225 Difference]: With dead ends: 25072 [2022-12-13 22:09:33,655 INFO L226 Difference]: Without dead ends: 17230 [2022-12-13 22:09:33,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:33,661 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:33,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:09:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2022-12-13 22:09:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 17228. [2022-12-13 22:09:35,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 17226 states have (on average 1.4587251828631138) internal successors, (25128), 17227 states have internal predecessors, (25128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 25128 transitions. [2022-12-13 22:09:35,591 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 25128 transitions. Word has length 81 [2022-12-13 22:09:35,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:35,591 INFO L495 AbstractCegarLoop]: Abstraction has 17228 states and 25128 transitions. [2022-12-13 22:09:35,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:35,591 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 25128 transitions. [2022-12-13 22:09:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:09:35,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:35,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:09:35,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 22:09:35,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:35,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash -730351122, now seen corresponding path program 1 times [2022-12-13 22:09:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:35,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370124809] [2022-12-13 22:09:35,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:35,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:35,783 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:09:35,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:35,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370124809] [2022-12-13 22:09:35,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370124809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:35,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:35,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:09:35,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756070897] [2022-12-13 22:09:35,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:35,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:09:35,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:35,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:09:35,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:09:35,786 INFO L87 Difference]: Start difference. First operand 17228 states and 25128 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:50,252 INFO L93 Difference]: Finished difference Result 120284 states and 173616 transitions. [2022-12-13 22:09:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:09:50,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2022-12-13 22:09:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:50,400 INFO L225 Difference]: With dead ends: 120284 [2022-12-13 22:09:50,400 INFO L226 Difference]: Without dead ends: 109786 [2022-12-13 22:09:50,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:09:50,420 INFO L413 NwaCegarLoop]: 1668 mSDtfsCounter, 9868 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:50,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4656 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:09:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109786 states. [2022-12-13 22:09:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109786 to 29964. [2022-12-13 22:09:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29964 states, 29962 states have (on average 1.4452973766771244) internal successors, (43304), 29963 states have internal predecessors, (43304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29964 states to 29964 states and 43304 transitions. [2022-12-13 22:09:55,228 INFO L78 Accepts]: Start accepts. Automaton has 29964 states and 43304 transitions. Word has length 104 [2022-12-13 22:09:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:55,229 INFO L495 AbstractCegarLoop]: Abstraction has 29964 states and 43304 transitions. [2022-12-13 22:09:55,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 29964 states and 43304 transitions. [2022-12-13 22:09:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:09:55,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:55,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:09:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 22:09:55,235 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1211718382, now seen corresponding path program 1 times [2022-12-13 22:09:55,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:55,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714875583] [2022-12-13 22:09:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 22:09:55,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:55,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714875583] [2022-12-13 22:09:55,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714875583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:55,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:55,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:09:55,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147303147] [2022-12-13 22:09:55,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:55,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:09:55,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:09:55,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:09:55,418 INFO L87 Difference]: Start difference. First operand 29964 states and 43304 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:14,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:10:14,774 INFO L93 Difference]: Finished difference Result 135196 states and 194992 transitions. [2022-12-13 22:10:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:10:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2022-12-13 22:10:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:10:14,926 INFO L225 Difference]: With dead ends: 135196 [2022-12-13 22:10:14,926 INFO L226 Difference]: Without dead ends: 120282 [2022-12-13 22:10:14,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:10:14,951 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 9870 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9870 SdHoareTripleChecker+Valid, 4611 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:10:14,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9870 Valid, 4611 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:10:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states. [2022-12-13 22:10:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120282 to 50124. [2022-12-13 22:10:23,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50124 states, 50122 states have (on average 1.437293005067635) internal successors, (72040), 50123 states have internal predecessors, (72040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50124 states to 50124 states and 72040 transitions. [2022-12-13 22:10:23,676 INFO L78 Accepts]: Start accepts. Automaton has 50124 states and 72040 transitions. Word has length 104 [2022-12-13 22:10:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:10:23,676 INFO L495 AbstractCegarLoop]: Abstraction has 50124 states and 72040 transitions. [2022-12-13 22:10:23,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 50124 states and 72040 transitions. [2022-12-13 22:10:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:10:23,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:10:23,681 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:23,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 22:10:23,682 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:10:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1374632942, now seen corresponding path program 1 times [2022-12-13 22:10:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:23,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471321166] [2022-12-13 22:10:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 22:10:23,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:23,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471321166] [2022-12-13 22:10:23,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471321166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:23,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:23,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:10:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853096627] [2022-12-13 22:10:23,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:23,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:10:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:23,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:10:23,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:10:23,829 INFO L87 Difference]: Start difference. First operand 50124 states and 72040 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:10:48,146 INFO L93 Difference]: Finished difference Result 150108 states and 216304 transitions. [2022-12-13 22:10:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:10:48,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-12-13 22:10:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:10:48,318 INFO L225 Difference]: With dead ends: 150108 [2022-12-13 22:10:48,319 INFO L226 Difference]: Without dead ends: 135194 [2022-12-13 22:10:48,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:10:48,345 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 9890 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9890 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:10:48,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9890 Valid, 4571 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:10:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135194 states. [2022-12-13 22:11:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135194 to 65036. [2022-12-13 22:11:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65036 states, 65034 states have (on average 1.4354337731032998) internal successors, (93352), 65035 states have internal predecessors, (93352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65036 states to 65036 states and 93352 transitions. [2022-12-13 22:11:00,803 INFO L78 Accepts]: Start accepts. Automaton has 65036 states and 93352 transitions. Word has length 104 [2022-12-13 22:11:00,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:11:00,803 INFO L495 AbstractCegarLoop]: Abstraction has 65036 states and 93352 transitions. [2022-12-13 22:11:00,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 65036 states and 93352 transitions. [2022-12-13 22:11:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:11:00,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:11:00,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:11:00,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 22:11:00,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:11:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:11:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1638489326, now seen corresponding path program 1 times [2022-12-13 22:11:00,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:11:00,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889492136] [2022-12-13 22:11:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:11:00,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:11:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:11:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 22:11:00,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:11:00,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889492136] [2022-12-13 22:11:00,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889492136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:11:00,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:11:00,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:11:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992281788] [2022-12-13 22:11:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:11:00,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:11:00,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:11:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:11:00,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:11:00,949 INFO L87 Difference]: Start difference. First operand 65036 states and 93352 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:31,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:11:31,068 INFO L93 Difference]: Finished difference Result 165020 states and 237616 transitions. [2022-12-13 22:11:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:11:31,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 104 [2022-12-13 22:11:31,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:11:31,259 INFO L225 Difference]: With dead ends: 165020 [2022-12-13 22:11:31,259 INFO L226 Difference]: Without dead ends: 150106 [2022-12-13 22:11:31,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:11:31,285 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 9982 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9982 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:11:31,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9982 Valid, 4486 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:11:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2022-12-13 22:11:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 79948. [2022-12-13 22:11:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79948 states, 79946 states have (on average 1.434268130988417) internal successors, (114664), 79947 states have internal predecessors, (114664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79948 states to 79948 states and 114664 transitions. [2022-12-13 22:11:47,689 INFO L78 Accepts]: Start accepts. Automaton has 79948 states and 114664 transitions. Word has length 104 [2022-12-13 22:11:47,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:11:47,689 INFO L495 AbstractCegarLoop]: Abstraction has 79948 states and 114664 transitions. [2022-12-13 22:11:47,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:47,690 INFO L276 IsEmpty]: Start isEmpty. Operand 79948 states and 114664 transitions. [2022-12-13 22:11:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:11:47,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:11:47,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:11:47,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 22:11:47,695 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:11:47,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:11:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash 661282542, now seen corresponding path program 1 times [2022-12-13 22:11:47,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:11:47,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041540073] [2022-12-13 22:11:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:11:47,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:11:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:11:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 22:11:47,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:11:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041540073] [2022-12-13 22:11:47,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041540073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:11:47,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:11:47,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:11:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542094160] [2022-12-13 22:11:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:11:47,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:11:47,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:11:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:11:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:11:47,827 INFO L87 Difference]: Start difference. First operand 79948 states and 114664 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:12:23,402 INFO L93 Difference]: Finished difference Result 179932 states and 258928 transitions. [2022-12-13 22:12:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:12:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 104 [2022-12-13 22:12:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:12:23,629 INFO L225 Difference]: With dead ends: 179932 [2022-12-13 22:12:23,630 INFO L226 Difference]: Without dead ends: 165018 [2022-12-13 22:12:23,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:12:23,663 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 10065 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10065 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:12:23,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10065 Valid, 4548 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:12:23,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165018 states. [2022-12-13 22:12:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165018 to 94860. [2022-12-13 22:12:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94860 states, 94858 states have (on average 1.4334689746779397) internal successors, (135976), 94859 states have internal predecessors, (135976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94860 states to 94860 states and 135976 transitions. [2022-12-13 22:12:43,995 INFO L78 Accepts]: Start accepts. Automaton has 94860 states and 135976 transitions. Word has length 104 [2022-12-13 22:12:43,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:12:43,995 INFO L495 AbstractCegarLoop]: Abstraction has 94860 states and 135976 transitions. [2022-12-13 22:12:43,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 94860 states and 135976 transitions. [2022-12-13 22:12:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:12:44,000 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:12:44,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:12:44,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 22:12:44,001 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:12:44,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:12:44,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1852751890, now seen corresponding path program 1 times [2022-12-13 22:12:44,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:12:44,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344044814] [2022-12-13 22:12:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:12:44,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:12:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:12:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 22:12:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:12:44,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344044814] [2022-12-13 22:12:44,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344044814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:12:44,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:12:44,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:12:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951228292] [2022-12-13 22:12:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:12:44,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:12:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:12:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:12:44,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:12:44,136 INFO L87 Difference]: Start difference. First operand 94860 states and 135976 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:13:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:13:24,826 INFO L93 Difference]: Finished difference Result 194844 states and 280240 transitions. [2022-12-13 22:13:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:13:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 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 104 [2022-12-13 22:13:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:13:25,060 INFO L225 Difference]: With dead ends: 194844 [2022-12-13 22:13:25,060 INFO L226 Difference]: Without dead ends: 179930 [2022-12-13 22:13:25,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:13:25,095 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 9932 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9932 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:13:25,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9932 Valid, 4578 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:13:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179930 states. [2022-12-13 22:13:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179930 to 109772. [2022-12-13 22:13:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109772 states, 109770 states have (on average 1.4328869454313564) internal successors, (157288), 109771 states have internal predecessors, (157288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:13:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109772 states to 109772 states and 157288 transitions. [2022-12-13 22:13:49,899 INFO L78 Accepts]: Start accepts. Automaton has 109772 states and 157288 transitions. Word has length 104 [2022-12-13 22:13:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:13:49,900 INFO L495 AbstractCegarLoop]: Abstraction has 109772 states and 157288 transitions. [2022-12-13 22:13:49,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:13:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 109772 states and 157288 transitions. [2022-12-13 22:13:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 22:13:49,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:13:49,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:13:49,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 22:13:49,905 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:13:49,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:13:49,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1418215954, now seen corresponding path program 1 times [2022-12-13 22:13:49,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:13:49,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113057287] [2022-12-13 22:13:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:13:49,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:13:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:13:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 22:13:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:13:50,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113057287] [2022-12-13 22:13:50,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113057287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:13:50,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:13:50,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 22:13:50,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538703913] [2022-12-13 22:13:50,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:13:50,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 22:13:50,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:13:50,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 22:13:50,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 22:13:50,073 INFO L87 Difference]: Start difference. First operand 109772 states and 157288 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:14:38,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:14:38,634 INFO L93 Difference]: Finished difference Result 209756 states and 301552 transitions. [2022-12-13 22:14:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 22:14:38,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 104 [2022-12-13 22:14:38,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:14:38,886 INFO L225 Difference]: With dead ends: 209756 [2022-12-13 22:14:38,886 INFO L226 Difference]: Without dead ends: 194842 [2022-12-13 22:14:38,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-12-13 22:14:38,923 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 9815 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9815 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:14:38,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9815 Valid, 4750 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:14:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194842 states. [2022-12-13 22:15:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194842 to 124684. [2022-12-13 22:15:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124684 states, 124682 states have (on average 1.432444137886784) internal successors, (178600), 124683 states have internal predecessors, (178600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:15:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124684 states to 124684 states and 178600 transitions. [2022-12-13 22:15:08,142 INFO L78 Accepts]: Start accepts. Automaton has 124684 states and 178600 transitions. Word has length 104 [2022-12-13 22:15:08,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:15:08,142 INFO L495 AbstractCegarLoop]: Abstraction has 124684 states and 178600 transitions. [2022-12-13 22:15:08,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:15:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 124684 states and 178600 transitions. [2022-12-13 22:15:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-13 22:15:08,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:15:08,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:15:08,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 22:15:08,148 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:15:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:15:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1250794594, now seen corresponding path program 1 times [2022-12-13 22:15:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:15:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970308499] [2022-12-13 22:15:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:15:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:15:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:15:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:15:08,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:15:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970308499] [2022-12-13 22:15:08,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970308499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:15:08,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:15:08,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:15:08,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893067095] [2022-12-13 22:15:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:15:08,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:15:08,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:15:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:15:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:15:08,239 INFO L87 Difference]: Start difference. First operand 124684 states and 178600 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:15:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:15:38,551 INFO L93 Difference]: Finished difference Result 247056 states and 353578 transitions. [2022-12-13 22:15:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:15:38,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-12-13 22:15:38,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:15:38,721 INFO L225 Difference]: With dead ends: 247056 [2022-12-13 22:15:38,722 INFO L226 Difference]: Without dead ends: 124686 [2022-12-13 22:15:38,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:15:38,778 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 61 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:15:38,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3202 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:15:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124686 states. [2022-12-13 22:16:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124686 to 124684. [2022-12-13 22:16:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124684 states, 124682 states have (on average 1.41986814455976) internal successors, (177032), 124683 states have internal predecessors, (177032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124684 states to 124684 states and 177032 transitions. [2022-12-13 22:16:08,493 INFO L78 Accepts]: Start accepts. Automaton has 124684 states and 177032 transitions. Word has length 105 [2022-12-13 22:16:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:08,493 INFO L495 AbstractCegarLoop]: Abstraction has 124684 states and 177032 transitions. [2022-12-13 22:16:08,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 124684 states and 177032 transitions. [2022-12-13 22:16:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 22:16:08,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:08,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:08,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 22:16:08,500 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -823970074, now seen corresponding path program 1 times [2022-12-13 22:16:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:08,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506219891] [2022-12-13 22:16:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:08,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:08,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506219891] [2022-12-13 22:16:08,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506219891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:08,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:08,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84546636] [2022-12-13 22:16:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:08,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:08,594 INFO L87 Difference]: Start difference. First operand 124684 states and 177032 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:19,678 INFO L93 Difference]: Finished difference Result 169319 states and 240706 transitions. [2022-12-13 22:16:19,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:19,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-12-13 22:16:19,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:19,726 INFO L225 Difference]: With dead ends: 169319 [2022-12-13 22:16:19,726 INFO L226 Difference]: Without dead ends: 46949 [2022-12-13 22:16:19,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:19,762 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 55 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:19,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3199 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46949 states. [2022-12-13 22:16:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46949 to 46941. [2022-12-13 22:16:30,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46941 states, 46939 states have (on average 1.421951895012676) internal successors, (66745), 46940 states have internal predecessors, (66745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46941 states to 46941 states and 66745 transitions. [2022-12-13 22:16:30,772 INFO L78 Accepts]: Start accepts. Automaton has 46941 states and 66745 transitions. Word has length 106 [2022-12-13 22:16:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:30,772 INFO L495 AbstractCegarLoop]: Abstraction has 46941 states and 66745 transitions. [2022-12-13 22:16:30,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 46941 states and 66745 transitions. [2022-12-13 22:16:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 22:16:30,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:30,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:30,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 22:16:30,775 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:30,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1089145556, now seen corresponding path program 1 times [2022-12-13 22:16:30,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:30,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239576218] [2022-12-13 22:16:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:30,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239576218] [2022-12-13 22:16:30,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239576218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:30,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:30,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906610775] [2022-12-13 22:16:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:30,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:30,838 INFO L87 Difference]: Start difference. First operand 46941 states and 66745 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:36,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:36,216 INFO L93 Difference]: Finished difference Result 69249 states and 98299 transitions. [2022-12-13 22:16:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:36,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-12-13 22:16:36,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:36,240 INFO L225 Difference]: With dead ends: 69249 [2022-12-13 22:16:36,240 INFO L226 Difference]: Without dead ends: 24639 [2022-12-13 22:16:36,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:36,255 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 57 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:36,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3178 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:36,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24639 states. [2022-12-13 22:16:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24639 to 24637. [2022-12-13 22:16:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24637 states, 24635 states have (on average 1.4175360259792977) internal successors, (34921), 24636 states have internal predecessors, (34921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24637 states to 24637 states and 34921 transitions. [2022-12-13 22:16:41,599 INFO L78 Accepts]: Start accepts. Automaton has 24637 states and 34921 transitions. Word has length 107 [2022-12-13 22:16:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:41,599 INFO L495 AbstractCegarLoop]: Abstraction has 24637 states and 34921 transitions. [2022-12-13 22:16:41,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 24637 states and 34921 transitions. [2022-12-13 22:16:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-13 22:16:41,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:41,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:41,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 22:16:41,602 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash -405266490, now seen corresponding path program 1 times [2022-12-13 22:16:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:41,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395713610] [2022-12-13 22:16:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:41,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:41,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:41,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395713610] [2022-12-13 22:16:41,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395713610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:41,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:41,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:41,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976158380] [2022-12-13 22:16:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:41,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:41,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:41,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:41,661 INFO L87 Difference]: Start difference. First operand 24637 states and 34921 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:44,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:44,643 INFO L93 Difference]: Finished difference Result 35793 states and 50563 transitions. [2022-12-13 22:16:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-12-13 22:16:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:44,655 INFO L225 Difference]: With dead ends: 35793 [2022-12-13 22:16:44,655 INFO L226 Difference]: Without dead ends: 13487 [2022-12-13 22:16:44,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:44,665 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 54 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:44,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13487 states. [2022-12-13 22:16:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13487 to 13485. [2022-12-13 22:16:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13485 states, 13483 states have (on average 1.419936215975673) internal successors, (19145), 13484 states have internal predecessors, (19145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13485 states to 13485 states and 19145 transitions. [2022-12-13 22:16:47,364 INFO L78 Accepts]: Start accepts. Automaton has 13485 states and 19145 transitions. Word has length 109 [2022-12-13 22:16:47,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:47,364 INFO L495 AbstractCegarLoop]: Abstraction has 13485 states and 19145 transitions. [2022-12-13 22:16:47,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:47,364 INFO L276 IsEmpty]: Start isEmpty. Operand 13485 states and 19145 transitions. [2022-12-13 22:16:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 22:16:47,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:47,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:47,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 22:16:47,366 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1641546952, now seen corresponding path program 1 times [2022-12-13 22:16:47,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903459753] [2022-12-13 22:16:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:47,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:47,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903459753] [2022-12-13 22:16:47,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903459753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:47,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:47,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:47,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779987307] [2022-12-13 22:16:47,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:47,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:47,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:47,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:47,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:47,451 INFO L87 Difference]: Start difference. First operand 13485 states and 19145 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:48,910 INFO L93 Difference]: Finished difference Result 19065 states and 26899 transitions. [2022-12-13 22:16:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:48,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-12-13 22:16:48,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:48,917 INFO L225 Difference]: With dead ends: 19065 [2022-12-13 22:16:48,917 INFO L226 Difference]: Without dead ends: 7911 [2022-12-13 22:16:48,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:48,921 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 51 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:48,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7911 states. [2022-12-13 22:16:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7911 to 7909. [2022-12-13 22:16:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7907 states have (on average 1.4322751991905907) internal successors, (11325), 7908 states have internal predecessors, (11325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 11325 transitions. [2022-12-13 22:16:50,715 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 11325 transitions. Word has length 111 [2022-12-13 22:16:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:50,715 INFO L495 AbstractCegarLoop]: Abstraction has 7909 states and 11325 transitions. [2022-12-13 22:16:50,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 11325 transitions. [2022-12-13 22:16:50,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 22:16:50,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:50,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:50,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 22:16:50,717 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2078950102, now seen corresponding path program 1 times [2022-12-13 22:16:50,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:50,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806828125] [2022-12-13 22:16:50,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:50,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:50,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806828125] [2022-12-13 22:16:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806828125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:50,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:50,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:50,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792379978] [2022-12-13 22:16:50,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:50,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:50,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:50,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:50,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:50,775 INFO L87 Difference]: Start difference. First operand 7909 states and 11325 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:51,482 INFO L93 Difference]: Finished difference Result 10701 states and 15169 transitions. [2022-12-13 22:16:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-12-13 22:16:51,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:51,486 INFO L225 Difference]: With dead ends: 10701 [2022-12-13 22:16:51,486 INFO L226 Difference]: Without dead ends: 5123 [2022-12-13 22:16:51,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:51,489 INFO L413 NwaCegarLoop]: 1603 mSDtfsCounter, 48 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:51,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:51,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2022-12-13 22:16:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5121. [2022-12-13 22:16:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5119 states have (on average 1.4551670248095332) internal successors, (7449), 5120 states have internal predecessors, (7449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:52,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 7449 transitions. [2022-12-13 22:16:52,169 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 7449 transitions. Word has length 113 [2022-12-13 22:16:52,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:52,169 INFO L495 AbstractCegarLoop]: Abstraction has 5121 states and 7449 transitions. [2022-12-13 22:16:52,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 7449 transitions. [2022-12-13 22:16:52,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-13 22:16:52,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:52,171 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:52,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 22:16:52,171 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:52,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:52,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1833207196, now seen corresponding path program 1 times [2022-12-13 22:16:52,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:52,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538416814] [2022-12-13 22:16:52,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:52,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:52,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:52,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538416814] [2022-12-13 22:16:52,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538416814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:16:52,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:16:52,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:16:52,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104837560] [2022-12-13 22:16:52,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:16:52,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:16:52,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:52,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:16:52,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:52,231 INFO L87 Difference]: Start difference. First operand 5121 states and 7449 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:16:52,617 INFO L93 Difference]: Finished difference Result 6519 states and 9355 transitions. [2022-12-13 22:16:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:16:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-12-13 22:16:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:16:52,621 INFO L225 Difference]: With dead ends: 6519 [2022-12-13 22:16:52,621 INFO L226 Difference]: Without dead ends: 3729 [2022-12-13 22:16:52,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:16:52,623 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 45 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:16:52,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:16:52,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2022-12-13 22:16:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3727. [2022-12-13 22:16:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 3725 states have (on average 1.4840268456375838) internal successors, (5528), 3726 states have internal predecessors, (5528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5528 transitions. [2022-12-13 22:16:52,996 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5528 transitions. Word has length 115 [2022-12-13 22:16:52,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:16:52,996 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 5528 transitions. [2022-12-13 22:16:52,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:16:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5528 transitions. [2022-12-13 22:16:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-13 22:16:52,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:16:52,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:16:52,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 22:16:52,997 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:16:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:16:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1388278926, now seen corresponding path program 1 times [2022-12-13 22:16:52,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:16:52,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600761546] [2022-12-13 22:16:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:52,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:16:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:16:53,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:16:53,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600761546] [2022-12-13 22:16:53,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600761546] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:16:53,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903864026] [2022-12-13 22:16:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:16:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:16:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:16:53,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:16:53,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 22:16:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:16:53,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:16:53,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:16:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:16:54,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:16:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 22:16:54,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903864026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:16:54,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:16:54,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 17 [2022-12-13 22:16:54,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458272768] [2022-12-13 22:16:54,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:16:54,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 22:16:54,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:16:54,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 22:16:54,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-13 22:16:54,380 INFO L87 Difference]: Start difference. First operand 3727 states and 5528 transitions. Second operand has 17 states, 17 states have (on average 19.647058823529413) internal successors, (334), 17 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:17:05,508 INFO L93 Difference]: Finished difference Result 19447 states and 26204 transitions. [2022-12-13 22:17:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-12-13 22:17:05,509 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 19.647058823529413) internal successors, (334), 17 states have internal predecessors, (334), 0 states have call successors, (0), 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 117 [2022-12-13 22:17:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:17:05,522 INFO L225 Difference]: With dead ends: 19447 [2022-12-13 22:17:05,522 INFO L226 Difference]: Without dead ends: 18051 [2022-12-13 22:17:05,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1959 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1072, Invalid=4934, Unknown=0, NotChecked=0, Total=6006 [2022-12-13 22:17:05,526 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 19227 mSDsluCounter, 3806 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19227 SdHoareTripleChecker+Valid, 5359 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:17:05,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19227 Valid, 5359 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 22:17:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18051 states. [2022-12-13 22:17:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18051 to 13101. [2022-12-13 22:17:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13101 states, 13099 states have (on average 1.3648370104588137) internal successors, (17878), 13100 states have internal predecessors, (17878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13101 states to 13101 states and 17878 transitions. [2022-12-13 22:17:08,694 INFO L78 Accepts]: Start accepts. Automaton has 13101 states and 17878 transitions. Word has length 117 [2022-12-13 22:17:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:17:08,694 INFO L495 AbstractCegarLoop]: Abstraction has 13101 states and 17878 transitions. [2022-12-13 22:17:08,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 19.647058823529413) internal successors, (334), 17 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13101 states and 17878 transitions. [2022-12-13 22:17:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 22:17:08,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:17:08,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:08,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:17:08,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 22:17:08,897 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:17:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1084865964, now seen corresponding path program 1 times [2022-12-13 22:17:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:08,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233549005] [2022-12-13 22:17:08,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:08,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:09,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233549005] [2022-12-13 22:17:09,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233549005] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:17:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171432115] [2022-12-13 22:17:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:09,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:17:09,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:17:09,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:17:09,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 22:17:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:09,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 22:17:09,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:17:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:10,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:17:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:13,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171432115] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:17:13,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:17:13,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-12-13 22:17:13,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070001974] [2022-12-13 22:17:13,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:17:13,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 22:17:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:13,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 22:17:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 22:17:13,341 INFO L87 Difference]: Start difference. First operand 13101 states and 17878 transitions. Second operand has 33 states, 33 states have (on average 9.636363636363637) internal successors, (318), 33 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:18:11,351 INFO L93 Difference]: Finished difference Result 136331 states and 179150 transitions. [2022-12-13 22:18:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-12-13 22:18:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.636363636363637) internal successors, (318), 33 states have internal predecessors, (318), 0 states have call successors, (0), 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 118 [2022-12-13 22:18:11,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:18:11,491 INFO L225 Difference]: With dead ends: 136331 [2022-12-13 22:18:11,492 INFO L226 Difference]: Without dead ends: 125702 [2022-12-13 22:18:11,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 209 SyntacticMatches, 7 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4037 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=2060, Invalid=11050, Unknown=0, NotChecked=0, Total=13110 [2022-12-13 22:18:11,516 INFO L413 NwaCegarLoop]: 1611 mSDtfsCounter, 23199 mSDsluCounter, 18971 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23199 SdHoareTripleChecker+Valid, 20582 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:18:11,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23199 Valid, 20582 Invalid, 2600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 22:18:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125702 states. [2022-12-13 22:18:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125702 to 42496. [2022-12-13 22:18:28,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42496 states, 42494 states have (on average 1.3105144255659622) internal successors, (55689), 42495 states have internal predecessors, (55689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42496 states to 42496 states and 55689 transitions. [2022-12-13 22:18:28,836 INFO L78 Accepts]: Start accepts. Automaton has 42496 states and 55689 transitions. Word has length 118 [2022-12-13 22:18:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:18:28,837 INFO L495 AbstractCegarLoop]: Abstraction has 42496 states and 55689 transitions. [2022-12-13 22:18:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.636363636363637) internal successors, (318), 33 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 42496 states and 55689 transitions. [2022-12-13 22:18:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-13 22:18:28,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:18:28,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:18:28,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 22:18:29,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:18:29,041 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:18:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -450315972, now seen corresponding path program 1 times [2022-12-13 22:18:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:29,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074847198] [2022-12-13 22:18:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:18:29,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074847198] [2022-12-13 22:18:29,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074847198] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:18:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841994414] [2022-12-13 22:18:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:29,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:18:29,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:18:29,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:18:29,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc98fda1-9587-4f0a-b806-4f739feb756a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 22:18:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:29,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 22:18:29,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:18:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:18:30,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:18:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:18:32,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841994414] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:18:32,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:18:32,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-12-13 22:18:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968405623] [2022-12-13 22:18:32,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:18:32,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 22:18:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 22:18:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=930, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 22:18:32,124 INFO L87 Difference]: Start difference. First operand 42496 states and 55689 transitions. Second operand has 33 states, 33 states have (on average 9.575757575757576) internal successors, (316), 33 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:21:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:21:27,926 INFO L93 Difference]: Finished difference Result 421611 states and 539372 transitions. [2022-12-13 22:21:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-12-13 22:21:27,927 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 9.575757575757576) internal successors, (316), 33 states have internal predecessors, (316), 0 states have call successors, (0), 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 119 [2022-12-13 22:21:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:21:28,442 INFO L225 Difference]: With dead ends: 421611 [2022-12-13 22:21:28,442 INFO L226 Difference]: Without dead ends: 382289 [2022-12-13 22:21:28,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4450 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2219, Invalid=12301, Unknown=0, NotChecked=0, Total=14520 [2022-12-13 22:21:28,531 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 23696 mSDsluCounter, 11990 mSDsCounter, 0 mSdLazyCounter, 3535 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23696 SdHoareTripleChecker+Valid, 13655 SdHoareTripleChecker+Invalid, 3587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:21:28,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23696 Valid, 13655 Invalid, 3587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 3535 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-13 22:21:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382289 states.