./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/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 eebca77f45674e9c747126627d8fffbab7911c70d4e1d781272ecaec26772b5e --- 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 21:10:31,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:10:31,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:10:31,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:10:31,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:10:31,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:10:31,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:10:31,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:10:31,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:10:31,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:10:31,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:10:31,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:10:31,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:10:31,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:10:31,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:10:31,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:10:31,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:10:31,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:10:31,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:10:31,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:10:31,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:10:31,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:10:31,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:10:31,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:10:31,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:10:31,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:10:31,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:10:31,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:10:31,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:10:31,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:10:31,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:10:31,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:10:31,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:10:31,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:10:31,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:10:31,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:10:31,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:10:31,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:10:31,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:10:31,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:10:31,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:10:31,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:10:31,901 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:10:31,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:10:31,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:10:31,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:10:31,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:10:31,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:10:31,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:10:31,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:10:31,903 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:10:31,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:10:31,904 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:10:31,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:10:31,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:10:31,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:10:31,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:10:31,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:10:31,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:10:31,905 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:10:31,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:10:31,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:10:31,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:10:31,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:10:31,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:10:31,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:10:31,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:10:31,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:10:31,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:10:31,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:10:31,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:10:31,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:10:31,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:10:31,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:10:31,908 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:10:31,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:10:31,908 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:10:31,908 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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eebca77f45674e9c747126627d8fffbab7911c70d4e1d781272ecaec26772b5e [2022-12-13 21:10:32,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:10:32,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:10:32,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:10:32,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:10:32,116 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:10:32,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c [2022-12-13 21:10:34,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:10:35,090 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:10:35,091 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c [2022-12-13 21:10:35,144 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/data/233e9aeb9/fd33678169db4f89b0d111243fc68fe6/FLAG8829f5b6a [2022-12-13 21:10:35,158 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/data/233e9aeb9/fd33678169db4f89b0d111243fc68fe6 [2022-12-13 21:10:35,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:10:35,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:10:35,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:35,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:10:35,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:10:35,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:35" (1/1) ... [2022-12-13 21:10:35,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436ba4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:35, skipping insertion in model container [2022-12-13 21:10:35,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:35" (1/1) ... [2022-12-13 21:10:35,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:10:35,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:10:36,625 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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[377340,377353] [2022-12-13 21:10:36,651 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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[383339,383352] [2022-12-13 21:10:36,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:36,867 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:10:37,658 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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[377340,377353] [2022-12-13 21:10:37,664 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_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/sv-benchmarks/c/combinations/Problem05_label44+token_ring.09.cil-1.c[383339,383352] [2022-12-13 21:10:37,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:37,710 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:10:37,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37 WrapperNode [2022-12-13 21:10:37,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:37,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:37,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:10:37,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:10:37,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:37,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,125 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13025 [2022-12-13 21:10:38,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:38,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:10:38,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:10:38,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:10:38,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:10:38,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:10:38,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:10:38,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:10:38,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (1/1) ... [2022-12-13 21:10:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:10:38,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:10:38,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:10:38,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9c74f2a-e14d-4c5b-a580-c713c7cb5f91/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:10:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:10:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-13 21:10:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-13 21:10:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-12-13 21:10:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-12-13 21:10:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-13 21:10:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-13 21:10:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-13 21:10:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-13 21:10:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-13 21:10:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-13 21:10:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-13 21:10:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-13 21:10:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:10:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:10:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:10:38,638 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:10:38,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:10:44,213 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:10:44,230 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:10:44,231 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-12-13 21:10:44,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:44 BoogieIcfgContainer [2022-12-13 21:10:44,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:10:44,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:10:44,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:10:44,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:10:44,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:10:35" (1/3) ... [2022-12-13 21:10:44,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a0c4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:44, skipping insertion in model container [2022-12-13 21:10:44,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:37" (2/3) ... [2022-12-13 21:10:44,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a0c4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:44, skipping insertion in model container [2022-12-13 21:10:44,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:44" (3/3) ... [2022-12-13 21:10:44,240 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.09.cil-1.c [2022-12-13 21:10:44,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:10:44,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:10:44,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:10:44,324 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;@2ec69f5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:10:44,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:10:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 2490 states, 2458 states have (on average 1.8470301057770546) internal successors, (4540), 2461 states have internal predecessors, (4540), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-12-13 21:10:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:44,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:44,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:44,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -762884387, now seen corresponding path program 1 times [2022-12-13 21:10:44,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:44,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43115811] [2022-12-13 21:10:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:44,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:44,681 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 21:10:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43115811] [2022-12-13 21:10:44,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43115811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:44,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:44,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:10:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811277289] [2022-12-13 21:10:44,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:44,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:10:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:10:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:10:44,728 INFO L87 Difference]: Start difference. First operand has 2490 states, 2458 states have (on average 1.8470301057770546) internal successors, (4540), 2461 states have internal predecessors, (4540), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:46,134 INFO L93 Difference]: Finished difference Result 5081 states and 9345 transitions. [2022-12-13 21:10:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:10:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:46,155 INFO L225 Difference]: With dead ends: 5081 [2022-12-13 21:10:46,155 INFO L226 Difference]: Without dead ends: 2532 [2022-12-13 21:10:46,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:10:46,164 INFO L413 NwaCegarLoop]: 4304 mSDtfsCounter, 811 mSDsluCounter, 12387 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 16691 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:46,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 16691 Invalid, 855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 21:10:46,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2022-12-13 21:10:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2423. [2022-12-13 21:10:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2392 states have (on average 1.8323578595317727) internal successors, (4383), 2394 states have internal predecessors, (4383), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-12-13 21:10:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 4429 transitions. [2022-12-13 21:10:46,296 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 4429 transitions. Word has length 145 [2022-12-13 21:10:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:46,297 INFO L495 AbstractCegarLoop]: Abstraction has 2423 states and 4429 transitions. [2022-12-13 21:10:46,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 4429 transitions. [2022-12-13 21:10:46,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:46,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:46,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:46,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:10:46,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 854556063, now seen corresponding path program 1 times [2022-12-13 21:10:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:46,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642593225] [2022-12-13 21:10:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:46,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:46,544 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 21:10:46,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:46,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642593225] [2022-12-13 21:10:46,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642593225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:46,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:46,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:10:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155629392] [2022-12-13 21:10:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:46,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:10:46,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:46,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:10:46,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:10:46,547 INFO L87 Difference]: Start difference. First operand 2423 states and 4429 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:48,694 INFO L93 Difference]: Finished difference Result 3223 states and 5716 transitions. [2022-12-13 21:10:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:10:48,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:48,705 INFO L225 Difference]: With dead ends: 3223 [2022-12-13 21:10:48,706 INFO L226 Difference]: Without dead ends: 2938 [2022-12-13 21:10:48,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:10:48,708 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 5173 mSDsluCounter, 12629 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 16869 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:48,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 16869 Invalid, 1949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 21:10:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-12-13 21:10:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2721. [2022-12-13 21:10:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2665 states have (on average 1.8071294559099438) internal successors, (4816), 2668 states have internal predecessors, (4816), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2022-12-13 21:10:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 4901 transitions. [2022-12-13 21:10:48,812 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 4901 transitions. Word has length 145 [2022-12-13 21:10:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:48,812 INFO L495 AbstractCegarLoop]: Abstraction has 2721 states and 4901 transitions. [2022-12-13 21:10:48,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 4901 transitions. [2022-12-13 21:10:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:48,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:48,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:48,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:10:48,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:48,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1697407709, now seen corresponding path program 1 times [2022-12-13 21:10:48,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:48,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247480310] [2022-12-13 21:10:48,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:48,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:49,092 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 21:10:49,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:49,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247480310] [2022-12-13 21:10:49,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247480310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:49,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:49,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:10:49,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900061239] [2022-12-13 21:10:49,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:49,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:10:49,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:10:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:10:49,094 INFO L87 Difference]: Start difference. First operand 2721 states and 4901 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:51,311 INFO L93 Difference]: Finished difference Result 3941 states and 6863 transitions. [2022-12-13 21:10:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:10:51,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:51,319 INFO L225 Difference]: With dead ends: 3941 [2022-12-13 21:10:51,319 INFO L226 Difference]: Without dead ends: 3358 [2022-12-13 21:10:51,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:10:51,322 INFO L413 NwaCegarLoop]: 4401 mSDtfsCounter, 5204 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 21721 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:51,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5220 Valid, 21721 Invalid, 2851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 21:10:51,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-12-13 21:10:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 2998. [2022-12-13 21:10:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2917 states have (on average 1.7850531367843676) internal successors, (5207), 2921 states have internal predecessors, (5207), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2022-12-13 21:10:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 5330 transitions. [2022-12-13 21:10:51,401 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 5330 transitions. Word has length 145 [2022-12-13 21:10:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:51,402 INFO L495 AbstractCegarLoop]: Abstraction has 2998 states and 5330 transitions. [2022-12-13 21:10:51,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 5330 transitions. [2022-12-13 21:10:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:51,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:51,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:51,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:10:51,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:51,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:51,404 INFO L85 PathProgramCache]: Analyzing trace with hash -750369823, now seen corresponding path program 1 times [2022-12-13 21:10:51,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:51,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536463322] [2022-12-13 21:10:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:51,574 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 21:10:51,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:51,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536463322] [2022-12-13 21:10:51,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536463322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:51,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:51,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:10:51,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708297930] [2022-12-13 21:10:51,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:51,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:10:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:10:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:10:51,577 INFO L87 Difference]: Start difference. First operand 2998 states and 5330 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:53,840 INFO L93 Difference]: Finished difference Result 4998 states and 8540 transitions. [2022-12-13 21:10:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:10:53,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:53,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:53,850 INFO L225 Difference]: With dead ends: 4998 [2022-12-13 21:10:53,850 INFO L226 Difference]: Without dead ends: 4138 [2022-12-13 21:10:53,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:10:53,853 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 5198 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 21719 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:53,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 21719 Invalid, 2832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 21:10:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2022-12-13 21:10:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3556. [2022-12-13 21:10:53,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3556 states, 3425 states have (on average 1.7506569343065694) internal successors, (5996), 3431 states have internal predecessors, (5996), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2022-12-13 21:10:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 6199 transitions. [2022-12-13 21:10:53,974 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 6199 transitions. Word has length 145 [2022-12-13 21:10:53,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:53,974 INFO L495 AbstractCegarLoop]: Abstraction has 3556 states and 6199 transitions. [2022-12-13 21:10:53,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 6199 transitions. [2022-12-13 21:10:53,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:53,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:53,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:53,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:10:53,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:53,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1494188575, now seen corresponding path program 1 times [2022-12-13 21:10:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:53,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767004200] [2022-12-13 21:10:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:53,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:54,152 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 21:10:54,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:54,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767004200] [2022-12-13 21:10:54,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767004200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:54,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:54,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:10:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44940499] [2022-12-13 21:10:54,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:54,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:10:54,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:10:54,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:10:54,154 INFO L87 Difference]: Start difference. First operand 3556 states and 6199 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:56,678 INFO L93 Difference]: Finished difference Result 7038 states and 11757 transitions. [2022-12-13 21:10:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:10:56,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:56,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:56,692 INFO L225 Difference]: With dead ends: 7038 [2022-12-13 21:10:56,692 INFO L226 Difference]: Without dead ends: 5620 [2022-12-13 21:10:56,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:10:56,696 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 5197 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5213 SdHoareTripleChecker+Valid, 21719 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:56,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5213 Valid, 21719 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 21:10:56,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-12-13 21:10:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 4673. [2022-12-13 21:10:56,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4673 states, 4442 states have (on average 1.7050877982890589) internal successors, (7574), 4452 states have internal predecessors, (7574), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2022-12-13 21:10:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4673 states to 4673 states and 7943 transitions. [2022-12-13 21:10:56,908 INFO L78 Accepts]: Start accepts. Automaton has 4673 states and 7943 transitions. Word has length 145 [2022-12-13 21:10:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:56,908 INFO L495 AbstractCegarLoop]: Abstraction has 4673 states and 7943 transitions. [2022-12-13 21:10:56,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4673 states and 7943 transitions. [2022-12-13 21:10:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:10:56,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:56,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:56,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:10:56,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1982235681, now seen corresponding path program 1 times [2022-12-13 21:10:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:56,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546056783] [2022-12-13 21:10:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:10:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:10:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:57,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:10:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:10:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:57,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:10:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:57,053 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 21:10:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546056783] [2022-12-13 21:10:57,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546056783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:57,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:57,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:10:57,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749716998] [2022-12-13 21:10:57,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:57,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:10:57,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:10:57,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:10:57,054 INFO L87 Difference]: Start difference. First operand 4673 states and 7943 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:10:59,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:59,960 INFO L93 Difference]: Finished difference Result 11117 states and 18207 transitions. [2022-12-13 21:10:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:10:59,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:10:59,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:59,982 INFO L225 Difference]: With dead ends: 11117 [2022-12-13 21:10:59,982 INFO L226 Difference]: Without dead ends: 8582 [2022-12-13 21:10:59,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:10:59,988 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 5196 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 21719 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5212 Valid, 21719 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 21:10:59,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8582 states. [2022-12-13 21:11:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8582 to 6914. [2022-12-13 21:11:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6914 states, 6483 states have (on average 1.6566404442387783) internal successors, (10740), 6501 states have internal predecessors, (10740), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2022-12-13 21:11:00,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6914 states to 6914 states and 11459 transitions. [2022-12-13 21:11:00,366 INFO L78 Accepts]: Start accepts. Automaton has 6914 states and 11459 transitions. Word has length 145 [2022-12-13 21:11:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:00,366 INFO L495 AbstractCegarLoop]: Abstraction has 6914 states and 11459 transitions. [2022-12-13 21:11:00,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand 6914 states and 11459 transitions. [2022-12-13 21:11:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:00,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:00,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:00,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:11:00,372 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash 889600479, now seen corresponding path program 1 times [2022-12-13 21:11:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:00,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494085652] [2022-12-13 21:11:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:00,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,590 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 21:11:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:00,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494085652] [2022-12-13 21:11:00,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494085652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:00,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:00,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073840739] [2022-12-13 21:11:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:00,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:00,592 INFO L87 Difference]: Start difference. First operand 6914 states and 11459 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:03,695 INFO L93 Difference]: Finished difference Result 19276 states and 31169 transitions. [2022-12-13 21:11:03,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:11:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:11:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:03,730 INFO L225 Difference]: With dead ends: 19276 [2022-12-13 21:11:03,730 INFO L226 Difference]: Without dead ends: 14500 [2022-12-13 21:11:03,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:11:03,741 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5275 mSDsluCounter, 16820 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5291 SdHoareTripleChecker+Valid, 21065 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5291 Valid, 21065 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 21:11:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14500 states. [2022-12-13 21:11:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14500 to 11411. [2022-12-13 21:11:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11411 states, 10580 states have (on average 1.6156899810964083) internal successors, (17094), 10614 states have internal predecessors, (17094), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2022-12-13 21:11:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11411 states to 11411 states and 18567 transitions. [2022-12-13 21:11:04,681 INFO L78 Accepts]: Start accepts. Automaton has 11411 states and 18567 transitions. Word has length 145 [2022-12-13 21:11:04,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:04,681 INFO L495 AbstractCegarLoop]: Abstraction has 11411 states and 18567 transitions. [2022-12-13 21:11:04,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:04,682 INFO L276 IsEmpty]: Start isEmpty. Operand 11411 states and 18567 transitions. [2022-12-13 21:11:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:04,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:04,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:04,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:11:04,690 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash -392571807, now seen corresponding path program 1 times [2022-12-13 21:11:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:04,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548429707] [2022-12-13 21:11:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:04,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:04,856 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 21:11:04,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:04,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548429707] [2022-12-13 21:11:04,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548429707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:04,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:04,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494890645] [2022-12-13 21:11:04,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:04,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:04,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:04,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:04,858 INFO L87 Difference]: Start difference. First operand 11411 states and 18567 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:07,500 INFO L93 Difference]: Finished difference Result 23942 states and 38818 transitions. [2022-12-13 21:11:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:11:07,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:11:07,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:07,529 INFO L225 Difference]: With dead ends: 23942 [2022-12-13 21:11:07,529 INFO L226 Difference]: Without dead ends: 14669 [2022-12-13 21:11:07,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:11:07,548 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 4853 mSDsluCounter, 16571 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 20767 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:07,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 20767 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 21:11:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14669 states. [2022-12-13 21:11:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14669 to 11411. [2022-12-13 21:11:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11411 states, 10580 states have (on average 1.612570888468809) internal successors, (17061), 10614 states have internal predecessors, (17061), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2022-12-13 21:11:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11411 states to 11411 states and 18534 transitions. [2022-12-13 21:11:08,413 INFO L78 Accepts]: Start accepts. Automaton has 11411 states and 18534 transitions. Word has length 145 [2022-12-13 21:11:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:08,413 INFO L495 AbstractCegarLoop]: Abstraction has 11411 states and 18534 transitions. [2022-12-13 21:11:08,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 11411 states and 18534 transitions. [2022-12-13 21:11:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:08,418 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:08,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:11:08,418 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2059919775, now seen corresponding path program 1 times [2022-12-13 21:11:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:08,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261761117] [2022-12-13 21:11:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:08,582 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 21:11:08,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261761117] [2022-12-13 21:11:08,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261761117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:08,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:08,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:08,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210795176] [2022-12-13 21:11:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:08,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:08,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:08,584 INFO L87 Difference]: Start difference. First operand 11411 states and 18534 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:13,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:13,597 INFO L93 Difference]: Finished difference Result 35561 states and 57055 transitions. [2022-12-13 21:11:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:11:13,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:11:13,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:13,652 INFO L225 Difference]: With dead ends: 35561 [2022-12-13 21:11:13,653 INFO L226 Difference]: Without dead ends: 26288 [2022-12-13 21:11:13,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:11:13,673 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 5187 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 21719 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:13,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 21719 Invalid, 2755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 21:11:13,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26288 states. [2022-12-13 21:11:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26288 to 20469. [2022-12-13 21:11:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20469 states, 18838 states have (on average 1.5828113387833103) internal successors, (29817), 18904 states have internal predecessors, (29817), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 454 states have return successors, (1968), 1238 states have call predecessors, (1968), 1175 states have call successors, (1968) [2022-12-13 21:11:15,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20469 states to 20469 states and 32960 transitions. [2022-12-13 21:11:15,642 INFO L78 Accepts]: Start accepts. Automaton has 20469 states and 32960 transitions. Word has length 145 [2022-12-13 21:11:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:15,642 INFO L495 AbstractCegarLoop]: Abstraction has 20469 states and 32960 transitions. [2022-12-13 21:11:15,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:15,642 INFO L276 IsEmpty]: Start isEmpty. Operand 20469 states and 32960 transitions. [2022-12-13 21:11:15,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:15,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:15,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:15,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:11:15,649 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:15,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:15,650 INFO L85 PathProgramCache]: Analyzing trace with hash 337917089, now seen corresponding path program 1 times [2022-12-13 21:11:15,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:15,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070026621] [2022-12-13 21:11:15,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:15,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:15,829 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 21:11:15,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:15,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070026621] [2022-12-13 21:11:15,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070026621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:15,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:15,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132487661] [2022-12-13 21:11:15,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:15,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:15,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:15,830 INFO L87 Difference]: Start difference. First operand 20469 states and 32960 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:24,115 INFO L93 Difference]: Finished difference Result 68201 states and 109703 transitions. [2022-12-13 21:11:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:11:24,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:11:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:24,252 INFO L225 Difference]: With dead ends: 68201 [2022-12-13 21:11:24,252 INFO L226 Difference]: Without dead ends: 49870 [2022-12-13 21:11:24,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:11:24,290 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 5192 mSDsluCounter, 17320 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 21719 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:24,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 21719 Invalid, 2737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 21:11:24,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49870 states. [2022-12-13 21:11:27,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49870 to 38646. [2022-12-13 21:11:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38646 states, 35415 states have (on average 1.564845404489623) internal successors, (55419), 35545 states have internal predecessors, (55419), 2327 states have call successors, (2327), 774 states have call predecessors, (2327), 902 states have return successors, (4642), 2454 states have call predecessors, (4642), 2327 states have call successors, (4642) [2022-12-13 21:11:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38646 states to 38646 states and 62388 transitions. [2022-12-13 21:11:27,630 INFO L78 Accepts]: Start accepts. Automaton has 38646 states and 62388 transitions. Word has length 145 [2022-12-13 21:11:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:27,630 INFO L495 AbstractCegarLoop]: Abstraction has 38646 states and 62388 transitions. [2022-12-13 21:11:27,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 38646 states and 62388 transitions. [2022-12-13 21:11:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:27,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:27,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:27,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:11:27,641 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash 5273951, now seen corresponding path program 1 times [2022-12-13 21:11:27,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:27,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563910497] [2022-12-13 21:11:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:27,780 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 21:11:27,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:27,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563910497] [2022-12-13 21:11:27,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563910497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:27,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:27,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:27,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761078757] [2022-12-13 21:11:27,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:27,782 INFO L87 Difference]: Start difference. First operand 38646 states and 62388 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:46,211 INFO L93 Difference]: Finished difference Result 149094 states and 240779 transitions. [2022-12-13 21:11:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:11:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:11:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:46,524 INFO L225 Difference]: With dead ends: 149094 [2022-12-13 21:11:46,524 INFO L226 Difference]: Without dead ends: 112586 [2022-12-13 21:11:46,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:11:46,618 INFO L413 NwaCegarLoop]: 4396 mSDtfsCounter, 5269 mSDsluCounter, 17309 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5284 SdHoareTripleChecker+Valid, 21705 SdHoareTripleChecker+Invalid, 3258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:46,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5284 Valid, 21705 Invalid, 3258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 21:11:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112586 states. [2022-12-13 21:11:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112586 to 74232. [2022-12-13 21:11:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74232 states, 67929 states have (on average 1.5573760838522575) internal successors, (105791), 68187 states have internal predecessors, (105791), 4503 states have call successors, (4503), 1542 states have call predecessors, (4503), 1798 states have return successors, (11320), 4758 states have call predecessors, (11320), 4503 states have call successors, (11320) [2022-12-13 21:11:54,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74232 states to 74232 states and 121614 transitions. [2022-12-13 21:11:54,563 INFO L78 Accepts]: Start accepts. Automaton has 74232 states and 121614 transitions. Word has length 145 [2022-12-13 21:11:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:54,563 INFO L495 AbstractCegarLoop]: Abstraction has 74232 states and 121614 transitions. [2022-12-13 21:11:54,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:11:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 74232 states and 121614 transitions. [2022-12-13 21:11:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:11:54,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:54,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:54,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 21:11:54,584 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:54,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2007160221, now seen corresponding path program 1 times [2022-12-13 21:11:54,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:54,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184209367] [2022-12-13 21:11:54,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:54,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:11:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:11:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:11:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:11:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:11:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:54,736 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 21:11:54,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:54,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184209367] [2022-12-13 21:11:54,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184209367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:54,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:54,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:54,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308822801] [2022-12-13 21:11:54,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:54,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:54,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:54,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:54,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:54,739 INFO L87 Difference]: Start difference. First operand 74232 states and 121614 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:12:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:12:32,281 INFO L93 Difference]: Finished difference Result 288998 states and 474915 transitions. [2022-12-13 21:12:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:12:32,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:12:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:12:33,009 INFO L225 Difference]: With dead ends: 288998 [2022-12-13 21:12:33,010 INFO L226 Difference]: Without dead ends: 216904 [2022-12-13 21:12:33,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:12:33,226 INFO L413 NwaCegarLoop]: 4397 mSDtfsCounter, 5477 mSDsluCounter, 17312 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5503 SdHoareTripleChecker+Valid, 21709 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:12:33,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5503 Valid, 21709 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 21:12:33,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216904 states. [2022-12-13 21:12:48,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216904 to 145913. [2022-12-13 21:12:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145913 states, 133594 states have (on average 1.5545683189364792) internal successors, (207681), 134108 states have internal predecessors, (207681), 8727 states have call successors, (8727), 3078 states have call predecessors, (8727), 3590 states have return successors, (28922), 9238 states have call predecessors, (28922), 8727 states have call successors, (28922) [2022-12-13 21:12:49,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145913 states to 145913 states and 245330 transitions. [2022-12-13 21:12:49,304 INFO L78 Accepts]: Start accepts. Automaton has 145913 states and 245330 transitions. Word has length 145 [2022-12-13 21:12:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:12:49,305 INFO L495 AbstractCegarLoop]: Abstraction has 145913 states and 245330 transitions. [2022-12-13 21:12:49,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:12:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 145913 states and 245330 transitions. [2022-12-13 21:12:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:12:49,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:12:49,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:12:49,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:12:49,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:12:49,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:12:49,363 INFO L85 PathProgramCache]: Analyzing trace with hash -560662113, now seen corresponding path program 1 times [2022-12-13 21:12:49,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:12:49,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678694630] [2022-12-13 21:12:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:12:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:12:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:12:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:12:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:12:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:12:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:12:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:49,520 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 21:12:49,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:12:49,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678694630] [2022-12-13 21:12:49,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678694630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:12:49,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:12:49,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:12:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279914029] [2022-12-13 21:12:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:12:49,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:12:49,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:12:49,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:12:49,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:12:49,522 INFO L87 Difference]: Start difference. First operand 145913 states and 245330 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:14:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:14:01,700 INFO L93 Difference]: Finished difference Result 565733 states and 955945 transitions. [2022-12-13 21:14:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:14:01,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:14:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:14:03,331 INFO L225 Difference]: With dead ends: 565733 [2022-12-13 21:14:03,331 INFO L226 Difference]: Without dead ends: 421958 [2022-12-13 21:14:03,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:14:03,867 INFO L413 NwaCegarLoop]: 4397 mSDtfsCounter, 5437 mSDsluCounter, 17312 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5463 SdHoareTripleChecker+Valid, 21709 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:14:03,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5463 Valid, 21709 Invalid, 2682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 21:14:04,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421958 states. [2022-12-13 21:14:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421958 to 289018. [2022-12-13 21:14:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289018 states, 264923 states have (on average 1.5540930761013578) internal successors, (411715), 265949 states have internal predecessors, (411715), 16919 states have call successors, (16919), 6150 states have call predecessors, (16919), 7174 states have return successors, (76992), 17942 states have call predecessors, (76992), 16919 states have call successors, (76992) [2022-12-13 21:14:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289018 states to 289018 states and 505626 transitions. [2022-12-13 21:14:39,356 INFO L78 Accepts]: Start accepts. Automaton has 289018 states and 505626 transitions. Word has length 145 [2022-12-13 21:14:39,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:14:39,357 INFO L495 AbstractCegarLoop]: Abstraction has 289018 states and 505626 transitions. [2022-12-13 21:14:39,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:14:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 289018 states and 505626 transitions. [2022-12-13 21:14:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:14:39,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:14:39,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:14:39,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 21:14:39,446 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:14:39,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:14:39,447 INFO L85 PathProgramCache]: Analyzing trace with hash -89305763, now seen corresponding path program 1 times [2022-12-13 21:14:39,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:14:39,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224922651] [2022-12-13 21:14:39,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:14:39,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:14:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:14:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:14:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:14:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:14:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:14:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:39,591 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 21:14:39,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:14:39,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224922651] [2022-12-13 21:14:39,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224922651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:14:39,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:14:39,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:14:39,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098197932] [2022-12-13 21:14:39,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:14:39,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:14:39,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:14:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:14:39,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:14:39,593 INFO L87 Difference]: Start difference. First operand 289018 states and 505626 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:16:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:16:59,844 INFO L93 Difference]: Finished difference Result 1109732 states and 1955391 transitions. [2022-12-13 21:16:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:16:59,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:16:59,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:17:03,799 INFO L225 Difference]: With dead ends: 1109732 [2022-12-13 21:17:03,799 INFO L226 Difference]: Without dead ends: 822852 [2022-12-13 21:17:05,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:17:05,160 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5301 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5316 SdHoareTripleChecker+Valid, 21061 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:17:05,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5316 Valid, 21061 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 21:17:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822852 states. [2022-12-13 21:18:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822852 to 574715. [2022-12-13 21:18:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574715 states, 527580 states have (on average 1.5548220175139316) internal successors, (820293), 529630 states have internal predecessors, (820293), 32791 states have call successors, (32791), 12294 states have call predecessors, (32791), 14342 states have return successors, (211986), 34838 states have call predecessors, (211986), 32791 states have call successors, (211986) [2022-12-13 21:18:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574715 states to 574715 states and 1065070 transitions. [2022-12-13 21:18:22,072 INFO L78 Accepts]: Start accepts. Automaton has 574715 states and 1065070 transitions. Word has length 145 [2022-12-13 21:18:22,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:18:22,073 INFO L495 AbstractCegarLoop]: Abstraction has 574715 states and 1065070 transitions. [2022-12-13 21:18:22,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:18:22,073 INFO L276 IsEmpty]: Start isEmpty. Operand 574715 states and 1065070 transitions. [2022-12-13 21:18:22,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:18:22,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:18:22,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:18:22,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 21:18:22,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:18:22,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:18:22,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1736668705, now seen corresponding path program 1 times [2022-12-13 21:18:22,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:18:22,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702117212] [2022-12-13 21:18:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:18:22,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:18:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:18:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:18:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:18:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:18:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:18:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:18:22,564 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 21:18:22,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:18:22,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702117212] [2022-12-13 21:18:22,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702117212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:18:22,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:18:22,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:18:22,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087966522] [2022-12-13 21:18:22,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:18:22,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:18:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:18:22,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:18:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:18:22,566 INFO L87 Difference]: Start difference. First operand 574715 states and 1065070 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:20:21,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:20:21,301 INFO L93 Difference]: Finished difference Result 1313478 states and 2563927 transitions. [2022-12-13 21:20:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:20:21,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 145 [2022-12-13 21:20:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:20:25,105 INFO L225 Difference]: With dead ends: 1313478 [2022-12-13 21:20:25,105 INFO L226 Difference]: Without dead ends: 740901 [2022-12-13 21:20:27,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:20:27,362 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 4859 mSDsluCounter, 16569 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 20765 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:20:27,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 20765 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 21:20:27,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740901 states. [2022-12-13 21:21:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740901 to 574715. [2022-12-13 21:21:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574715 states, 527580 states have (on average 1.5509382463323098) internal successors, (818244), 529630 states have internal predecessors, (818244), 32791 states have call successors, (32791), 12294 states have call predecessors, (32791), 14342 states have return successors, (211986), 34838 states have call predecessors, (211986), 32791 states have call successors, (211986) [2022-12-13 21:21:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574715 states to 574715 states and 1063021 transitions. [2022-12-13 21:21:52,831 INFO L78 Accepts]: Start accepts. Automaton has 574715 states and 1063021 transitions. Word has length 145 [2022-12-13 21:21:52,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:52,832 INFO L495 AbstractCegarLoop]: Abstraction has 574715 states and 1063021 transitions. [2022-12-13 21:21:52,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 21:21:52,832 INFO L276 IsEmpty]: Start isEmpty. Operand 574715 states and 1063021 transitions. [2022-12-13 21:21:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 21:21:53,170 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:53,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:21:53,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 21:21:53,170 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash 426947869, now seen corresponding path program 1 times [2022-12-13 21:21:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:21:53,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398209823] [2022-12-13 21:21:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:21:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:21:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 21:21:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:21:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 21:21:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:21:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:53,323 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 21:21:53,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:21:53,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398209823] [2022-12-13 21:21:53,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398209823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:21:53,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:21:53,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:21:53,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303566669] [2022-12-13 21:21:53,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:21:53,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:21:53,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:21:53,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:21:53,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:21:53,325 INFO L87 Difference]: Start difference. First operand 574715 states and 1063021 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)