./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_net_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/psyco/psyco_net_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 --- 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 [2022-12-14 09:03:51,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:03:51,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:03:51,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:03:51,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:03:51,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:03:51,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:03:51,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:03:51,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:03:51,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:03:51,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:03:51,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:03:51,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:03:51,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:03:51,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:03:51,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:03:51,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:03:51,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:03:51,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:03:51,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:03:51,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:03:51,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:03:51,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:03:51,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:03:51,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:03:51,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:03:51,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:03:51,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:03:51,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:03:51,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:03:51,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:03:51,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:03:51,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:03:51,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:03:51,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:03:51,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:03:51,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:03:51,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:03:51,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:03:51,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:03:51,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:03:51,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:03:52,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:03:52,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:03:52,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:03:52,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:03:52,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:03:52,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:03:52,010 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:03:52,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:03:52,011 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:03:52,011 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:03:52,011 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:03:52,011 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:03:52,011 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:03:52,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:03:52,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:03:52,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:03:52,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:03:52,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:03:52,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:03:52,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:03:52,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:03:52,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:03:52,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:03:52,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:03:52,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:03:52,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:03:52,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:03:52,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:03:52,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:03:52,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:03:52,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de2f4457e683c9057510f44fdcfcada297661f8afdeccfe707ab5df57f434b62 [2022-12-14 09:03:52,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:03:52,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:03:52,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:03:52,228 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:03:52,228 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:03:52,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/psyco/psyco_net_1.c [2022-12-14 09:03:54,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:03:55,266 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:03:55,266 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/sv-benchmarks/c/psyco/psyco_net_1.c [2022-12-14 09:03:55,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/data/ef9c11254/501fa747570341a5b54a933aa01de54c/FLAG88771c2bd [2022-12-14 09:03:55,813 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/data/ef9c11254/501fa747570341a5b54a933aa01de54c [2022-12-14 09:03:55,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:03:55,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:03:55,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:03:55,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:03:55,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:03:55,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:03:55" (1/1) ... [2022-12-14 09:03:55,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127cefa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:55, skipping insertion in model container [2022-12-14 09:03:55,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:03:55" (1/1) ... [2022-12-14 09:03:55,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:03:56,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:03:57,153 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_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2022-12-14 09:03:57,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:03:57,194 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:03:57,903 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_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2022-12-14 09:03:57,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:03:57,954 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:03:57,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57 WrapperNode [2022-12-14 09:03:57,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:03:57,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:03:57,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:03:57,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:03:57,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,550 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50075 [2022-12-14 09:03:58,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:03:58,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:03:58,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:03:58,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:03:58,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:58,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:59,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:59,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:59,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:03:59,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:03:59,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:03:59,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:03:59,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (1/1) ... [2022-12-14 09:03:59,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:03:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:03:59,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:03:59,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:03:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:03:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:03:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:03:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:03:59,634 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:03:59,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:04:09,697 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:04:09,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:04:09,780 INFO L300 CfgBuilder]: Removed 1130 assume(true) statements. [2022-12-14 09:04:09,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09 BoogieIcfgContainer [2022-12-14 09:04:09,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:04:09,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:04:09,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:04:09,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:04:09,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:03:55" (1/3) ... [2022-12-14 09:04:09,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3991dc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:09, skipping insertion in model container [2022-12-14 09:04:09,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:57" (2/3) ... [2022-12-14 09:04:09,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3991dc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:09, skipping insertion in model container [2022-12-14 09:04:09,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09" (3/3) ... [2022-12-14 09:04:09,795 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_net_1.c [2022-12-14 09:04:09,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:04:09,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:04:09,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:09,941 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=FINITE_AUTOMATA, 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;@5c938ecf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:09,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:04:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 9209 states, 9207 states have (on average 1.9996741609644835) internal successors, (18411), 9208 states have internal predecessors, (18411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:09,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:04:09,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:09,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:09,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:09,973 INFO L85 PathProgramCache]: Analyzing trace with hash 182211473, now seen corresponding path program 1 times [2022-12-14 09:04:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:09,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533468722] [2022-12-14 09:04:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:09,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:10,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:10,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533468722] [2022-12-14 09:04:10,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533468722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:10,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:10,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:10,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573811535] [2022-12-14 09:04:10,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:10,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:04:10,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:10,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:04:10,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:10,222 INFO L87 Difference]: Start difference. First operand has 9209 states, 9207 states have (on average 1.9996741609644835) internal successors, (18411), 9208 states have internal predecessors, (18411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:10,474 INFO L93 Difference]: Finished difference Result 17695 states and 35377 transitions. [2022-12-14 09:04:10,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:04:10,476 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 09:04:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:10,512 INFO L225 Difference]: With dead ends: 17695 [2022-12-14 09:04:10,513 INFO L226 Difference]: Without dead ends: 8279 [2022-12-14 09:04:10,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:10,527 INFO L413 NwaCegarLoop]: 14143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14143 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:10,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14143 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8279 states. [2022-12-14 09:04:10,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8279 to 8279. [2022-12-14 09:04:10,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8279 states, 8278 states have (on average 1.5699444310219859) internal successors, (12996), 8278 states have internal predecessors, (12996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8279 states to 8279 states and 12996 transitions. [2022-12-14 09:04:10,713 INFO L78 Accepts]: Start accepts. Automaton has 8279 states and 12996 transitions. Word has length 8 [2022-12-14 09:04:10,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:10,713 INFO L495 AbstractCegarLoop]: Abstraction has 8279 states and 12996 transitions. [2022-12-14 09:04:10,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8279 states and 12996 transitions. [2022-12-14 09:04:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:04:10,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:10,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:10,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:04:10,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:10,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1884649833, now seen corresponding path program 1 times [2022-12-14 09:04:10,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:10,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157755315] [2022-12-14 09:04:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:10,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:10,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:10,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157755315] [2022-12-14 09:04:10,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157755315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:10,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:10,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:10,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053053962] [2022-12-14 09:04:10,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:10,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:10,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:10,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:10,805 INFO L87 Difference]: Start difference. First operand 8279 states and 12996 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:12,318 INFO L93 Difference]: Finished difference Result 16560 states and 25995 transitions. [2022-12-14 09:04:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 09:04:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:12,349 INFO L225 Difference]: With dead ends: 16560 [2022-12-14 09:04:12,349 INFO L226 Difference]: Without dead ends: 8282 [2022-12-14 09:04:12,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:12,356 INFO L413 NwaCegarLoop]: 12994 mSDtfsCounter, 4 mSDsluCounter, 11519 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24513 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:12,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24513 Invalid, 1475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 09:04:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8282 states. [2022-12-14 09:04:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8282 to 8282. [2022-12-14 09:04:12,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 1.569737954353339) internal successors, (12999), 8281 states have internal predecessors, (12999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 12999 transitions. [2022-12-14 09:04:12,470 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 12999 transitions. Word has length 9 [2022-12-14 09:04:12,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:12,470 INFO L495 AbstractCegarLoop]: Abstraction has 8282 states and 12999 transitions. [2022-12-14 09:04:12,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:12,470 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 12999 transitions. [2022-12-14 09:04:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:04:12,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:12,471 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:12,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:04:12,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:12,471 INFO L85 PathProgramCache]: Analyzing trace with hash 897026676, now seen corresponding path program 1 times [2022-12-14 09:04:12,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:12,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438084451] [2022-12-14 09:04:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:12,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:12,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:12,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438084451] [2022-12-14 09:04:12,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438084451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:12,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:12,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:12,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102706824] [2022-12-14 09:04:12,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:12,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:12,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:12,569 INFO L87 Difference]: Start difference. First operand 8282 states and 12999 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:14,099 INFO L93 Difference]: Finished difference Result 16568 states and 26004 transitions. [2022-12-14 09:04:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 09:04:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:14,122 INFO L225 Difference]: With dead ends: 16568 [2022-12-14 09:04:14,122 INFO L226 Difference]: Without dead ends: 8288 [2022-12-14 09:04:14,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:14,131 INFO L413 NwaCegarLoop]: 12993 mSDtfsCounter, 329 mSDsluCounter, 11196 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 24189 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:14,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 24189 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 09:04:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8288 states. [2022-12-14 09:04:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8288 to 8286. [2022-12-14 09:04:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 1.5694628847314425) internal successors, (13003), 8285 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 13003 transitions. [2022-12-14 09:04:14,247 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 13003 transitions. Word has length 14 [2022-12-14 09:04:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:14,247 INFO L495 AbstractCegarLoop]: Abstraction has 8286 states and 13003 transitions. [2022-12-14 09:04:14,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 13003 transitions. [2022-12-14 09:04:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:04:14,248 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:14,248 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:14,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:04:14,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1409738145, now seen corresponding path program 1 times [2022-12-14 09:04:14,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:14,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163807809] [2022-12-14 09:04:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:14,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163807809] [2022-12-14 09:04:14,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163807809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:14,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:14,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:14,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977755123] [2022-12-14 09:04:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:14,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:14,315 INFO L87 Difference]: Start difference. First operand 8286 states and 13003 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:16,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:16,946 INFO L93 Difference]: Finished difference Result 16490 states and 25884 transitions. [2022-12-14 09:04:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:16,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 09:04:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:16,960 INFO L225 Difference]: With dead ends: 16490 [2022-12-14 09:04:16,960 INFO L226 Difference]: Without dead ends: 8164 [2022-12-14 09:04:16,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:16,965 INFO L413 NwaCegarLoop]: 9996 mSDtfsCounter, 11116 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 1749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11116 SdHoareTripleChecker+Valid, 9996 SdHoareTripleChecker+Invalid, 4168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1749 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:16,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11116 Valid, 9996 Invalid, 4168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1749 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 09:04:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8164 states. [2022-12-14 09:04:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8164 to 8164. [2022-12-14 09:04:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8164 states, 8163 states have (on average 1.516599289476908) internal successors, (12380), 8163 states have internal predecessors, (12380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:17,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8164 states to 8164 states and 12380 transitions. [2022-12-14 09:04:17,076 INFO L78 Accepts]: Start accepts. Automaton has 8164 states and 12380 transitions. Word has length 18 [2022-12-14 09:04:17,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:17,077 INFO L495 AbstractCegarLoop]: Abstraction has 8164 states and 12380 transitions. [2022-12-14 09:04:17,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:17,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8164 states and 12380 transitions. [2022-12-14 09:04:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 09:04:17,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:17,078 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:04:17,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1096116993, now seen corresponding path program 1 times [2022-12-14 09:04:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257969026] [2022-12-14 09:04:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:17,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:17,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257969026] [2022-12-14 09:04:17,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257969026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:17,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:17,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780414513] [2022-12-14 09:04:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:17,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:17,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:17,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:17,151 INFO L87 Difference]: Start difference. First operand 8164 states and 12380 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:19,486 INFO L93 Difference]: Finished difference Result 24488 states and 37136 transitions. [2022-12-14 09:04:19,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:19,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 09:04:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:19,509 INFO L225 Difference]: With dead ends: 24488 [2022-12-14 09:04:19,509 INFO L226 Difference]: Without dead ends: 16276 [2022-12-14 09:04:19,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:19,517 INFO L413 NwaCegarLoop]: 10922 mSDtfsCounter, 11045 mSDsluCounter, 10880 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 1427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11045 SdHoareTripleChecker+Valid, 21802 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1427 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11045 Valid, 21802 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1427 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 09:04:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2022-12-14 09:04:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 14962. [2022-12-14 09:04:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14962 states, 14961 states have (on average 1.5566472829356326) internal successors, (23289), 14961 states have internal predecessors, (23289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14962 states to 14962 states and 23289 transitions. [2022-12-14 09:04:19,700 INFO L78 Accepts]: Start accepts. Automaton has 14962 states and 23289 transitions. Word has length 22 [2022-12-14 09:04:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:19,700 INFO L495 AbstractCegarLoop]: Abstraction has 14962 states and 23289 transitions. [2022-12-14 09:04:19,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 14962 states and 23289 transitions. [2022-12-14 09:04:19,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:04:19,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:19,701 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:19,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:04:19,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:19,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:19,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1423449426, now seen corresponding path program 1 times [2022-12-14 09:04:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:19,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982390038] [2022-12-14 09:04:19,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:19,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:19,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982390038] [2022-12-14 09:04:19,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982390038] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:19,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:19,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:19,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337614804] [2022-12-14 09:04:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:19,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:19,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:19,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:19,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:19,801 INFO L87 Difference]: Start difference. First operand 14962 states and 23289 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:23,616 INFO L93 Difference]: Finished difference Result 37762 states and 58559 transitions. [2022-12-14 09:04:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:23,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:04:23,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:23,644 INFO L225 Difference]: With dead ends: 37762 [2022-12-14 09:04:23,644 INFO L226 Difference]: Without dead ends: 22520 [2022-12-14 09:04:23,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:23,655 INFO L413 NwaCegarLoop]: 10500 mSDtfsCounter, 10474 mSDsluCounter, 9628 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 1487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10474 SdHoareTripleChecker+Valid, 20128 SdHoareTripleChecker+Invalid, 5943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1487 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:23,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10474 Valid, 20128 Invalid, 5943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1487 Valid, 4456 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 09:04:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22520 states. [2022-12-14 09:04:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22520 to 21280. [2022-12-14 09:04:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21280 states, 21279 states have (on average 1.5519056346632831) internal successors, (33023), 21279 states have internal predecessors, (33023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21280 states to 21280 states and 33023 transitions. [2022-12-14 09:04:23,975 INFO L78 Accepts]: Start accepts. Automaton has 21280 states and 33023 transitions. Word has length 24 [2022-12-14 09:04:23,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:23,976 INFO L495 AbstractCegarLoop]: Abstraction has 21280 states and 33023 transitions. [2022-12-14 09:04:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 21280 states and 33023 transitions. [2022-12-14 09:04:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 09:04:23,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:23,976 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:23,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:04:23,977 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:23,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1092028023, now seen corresponding path program 1 times [2022-12-14 09:04:23,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:23,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853326136] [2022-12-14 09:04:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:24,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:24,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853326136] [2022-12-14 09:04:24,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853326136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:24,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:24,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805183017] [2022-12-14 09:04:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:24,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:24,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:24,075 INFO L87 Difference]: Start difference. First operand 21280 states and 33023 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:28,095 INFO L93 Difference]: Finished difference Result 63806 states and 99005 transitions. [2022-12-14 09:04:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:28,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-12-14 09:04:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:28,146 INFO L225 Difference]: With dead ends: 63806 [2022-12-14 09:04:28,146 INFO L226 Difference]: Without dead ends: 42528 [2022-12-14 09:04:28,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:28,165 INFO L413 NwaCegarLoop]: 21588 mSDtfsCounter, 11013 mSDsluCounter, 9572 mSDsCounter, 0 mSdLazyCounter, 5598 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11013 SdHoareTripleChecker+Valid, 31160 SdHoareTripleChecker+Invalid, 6746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 5598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:28,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11013 Valid, 31160 Invalid, 6746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1148 Valid, 5598 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 09:04:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42528 states. [2022-12-14 09:04:28,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42528 to 40444. [2022-12-14 09:04:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40444 states, 40443 states have (on average 1.5746606334841629) internal successors, (63684), 40443 states have internal predecessors, (63684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40444 states to 40444 states and 63684 transitions. [2022-12-14 09:04:28,591 INFO L78 Accepts]: Start accepts. Automaton has 40444 states and 63684 transitions. Word has length 29 [2022-12-14 09:04:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:28,592 INFO L495 AbstractCegarLoop]: Abstraction has 40444 states and 63684 transitions. [2022-12-14 09:04:28,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 40444 states and 63684 transitions. [2022-12-14 09:04:28,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:04:28,593 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:28,593 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:28,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:04:28,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:28,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash -197265190, now seen corresponding path program 1 times [2022-12-14 09:04:28,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:28,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850622416] [2022-12-14 09:04:28,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:28,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:28,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:28,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850622416] [2022-12-14 09:04:28,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850622416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:28,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:28,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:28,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818075327] [2022-12-14 09:04:28,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:28,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:28,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:28,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:28,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:28,700 INFO L87 Difference]: Start difference. First operand 40444 states and 63684 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:29,853 INFO L93 Difference]: Finished difference Result 80918 states and 127421 transitions. [2022-12-14 09:04:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-12-14 09:04:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:29,902 INFO L225 Difference]: With dead ends: 80918 [2022-12-14 09:04:29,902 INFO L226 Difference]: Without dead ends: 40476 [2022-12-14 09:04:29,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:29,925 INFO L413 NwaCegarLoop]: 12340 mSDtfsCounter, 305 mSDsluCounter, 10698 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 23038 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:29,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 23038 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 09:04:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40476 states. [2022-12-14 09:04:30,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40476 to 40474. [2022-12-14 09:04:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40474 states, 40473 states have (on average 1.5742346749684974) internal successors, (63714), 40473 states have internal predecessors, (63714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40474 states to 40474 states and 63714 transitions. [2022-12-14 09:04:30,345 INFO L78 Accepts]: Start accepts. Automaton has 40474 states and 63714 transitions. Word has length 35 [2022-12-14 09:04:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:30,346 INFO L495 AbstractCegarLoop]: Abstraction has 40474 states and 63714 transitions. [2022-12-14 09:04:30,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 40474 states and 63714 transitions. [2022-12-14 09:04:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 09:04:30,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:30,347 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:04:30,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:30,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:30,347 INFO L85 PathProgramCache]: Analyzing trace with hash -504887773, now seen corresponding path program 1 times [2022-12-14 09:04:30,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:30,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846844320] [2022-12-14 09:04:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:30,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:30,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:30,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846844320] [2022-12-14 09:04:30,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846844320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:30,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:30,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:30,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223435594] [2022-12-14 09:04:30,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:30,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:30,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:30,405 INFO L87 Difference]: Start difference. First operand 40474 states and 63714 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:33,442 INFO L93 Difference]: Finished difference Result 109022 states and 171832 transitions. [2022-12-14 09:04:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:33,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-12-14 09:04:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:33,531 INFO L225 Difference]: With dead ends: 109022 [2022-12-14 09:04:33,531 INFO L226 Difference]: Without dead ends: 68500 [2022-12-14 09:04:33,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:33,559 INFO L413 NwaCegarLoop]: 10922 mSDtfsCounter, 11029 mSDsluCounter, 10880 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11029 SdHoareTripleChecker+Valid, 21802 SdHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:33,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11029 Valid, 21802 Invalid, 4143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 09:04:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68500 states. [2022-12-14 09:04:34,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68500 to 66770. [2022-12-14 09:04:34,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66770 states, 66769 states have (on average 1.585136814988992) internal successors, (105838), 66769 states have internal predecessors, (105838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:34,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66770 states to 66770 states and 105838 transitions. [2022-12-14 09:04:34,314 INFO L78 Accepts]: Start accepts. Automaton has 66770 states and 105838 transitions. Word has length 38 [2022-12-14 09:04:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:34,314 INFO L495 AbstractCegarLoop]: Abstraction has 66770 states and 105838 transitions. [2022-12-14 09:04:34,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 66770 states and 105838 transitions. [2022-12-14 09:04:34,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 09:04:34,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:34,316 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:34,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:04:34,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:34,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2095911498, now seen corresponding path program 1 times [2022-12-14 09:04:34,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:34,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356878486] [2022-12-14 09:04:34,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:34,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:34,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:34,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356878486] [2022-12-14 09:04:34,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356878486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:34,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:34,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042375984] [2022-12-14 09:04:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:34,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:34,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:34,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:34,425 INFO L87 Difference]: Start difference. First operand 66770 states and 105838 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:35,606 INFO L93 Difference]: Finished difference Result 129326 states and 204979 transitions. [2022-12-14 09:04:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:35,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-12-14 09:04:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:35,689 INFO L225 Difference]: With dead ends: 129326 [2022-12-14 09:04:35,689 INFO L226 Difference]: Without dead ends: 62558 [2022-12-14 09:04:35,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:35,724 INFO L413 NwaCegarLoop]: 12045 mSDtfsCounter, 10323 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10323 SdHoareTripleChecker+Valid, 12595 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:35,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10323 Valid, 12595 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 09:04:35,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62558 states. [2022-12-14 09:04:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62558 to 62556. [2022-12-14 09:04:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62556 states, 62555 states have (on average 1.584237870673807) internal successors, (99102), 62555 states have internal predecessors, (99102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:36,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62556 states to 62556 states and 99102 transitions. [2022-12-14 09:04:36,406 INFO L78 Accepts]: Start accepts. Automaton has 62556 states and 99102 transitions. Word has length 45 [2022-12-14 09:04:36,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:36,407 INFO L495 AbstractCegarLoop]: Abstraction has 62556 states and 99102 transitions. [2022-12-14 09:04:36,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 62556 states and 99102 transitions. [2022-12-14 09:04:36,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 09:04:36,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:36,408 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:36,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:04:36,408 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1850197707, now seen corresponding path program 1 times [2022-12-14 09:04:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:36,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806117408] [2022-12-14 09:04:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:36,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:36,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:36,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806117408] [2022-12-14 09:04:36,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806117408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:36,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:36,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:04:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24030469] [2022-12-14 09:04:36,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:36,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:04:36,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:36,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:04:36,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:04:36,898 INFO L87 Difference]: Start difference. First operand 62556 states and 99102 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:41,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:41,462 INFO L93 Difference]: Finished difference Result 119611 states and 189345 transitions. [2022-12-14 09:04:41,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:04:41,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-12-14 09:04:41,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:41,538 INFO L225 Difference]: With dead ends: 119611 [2022-12-14 09:04:41,538 INFO L226 Difference]: Without dead ends: 62790 [2022-12-14 09:04:41,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:04:41,565 INFO L413 NwaCegarLoop]: 9460 mSDtfsCounter, 20520 mSDsluCounter, 9229 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 2448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20520 SdHoareTripleChecker+Valid, 18689 SdHoareTripleChecker+Invalid, 6560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2448 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:41,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20520 Valid, 18689 Invalid, 6560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2448 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:04:41,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62790 states. [2022-12-14 09:04:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62790 to 60394. [2022-12-14 09:04:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60394 states, 60393 states have (on average 1.56274733826768) internal successors, (94379), 60393 states have internal predecessors, (94379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60394 states to 60394 states and 94379 transitions. [2022-12-14 09:04:42,228 INFO L78 Accepts]: Start accepts. Automaton has 60394 states and 94379 transitions. Word has length 51 [2022-12-14 09:04:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:42,228 INFO L495 AbstractCegarLoop]: Abstraction has 60394 states and 94379 transitions. [2022-12-14 09:04:42,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 60394 states and 94379 transitions. [2022-12-14 09:04:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 09:04:42,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:42,229 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:42,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:04:42,229 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1545744311, now seen corresponding path program 1 times [2022-12-14 09:04:42,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:42,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422973682] [2022-12-14 09:04:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:42,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:42,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:42,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422973682] [2022-12-14 09:04:42,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422973682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:42,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:42,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410011334] [2022-12-14 09:04:42,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:42,290 INFO L87 Difference]: Start difference. First operand 60394 states and 94379 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:43,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:43,468 INFO L93 Difference]: Finished difference Result 120431 states and 188192 transitions. [2022-12-14 09:04:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:43,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-12-14 09:04:43,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:43,546 INFO L225 Difference]: With dead ends: 120431 [2022-12-14 09:04:43,546 INFO L226 Difference]: Without dead ends: 60456 [2022-12-14 09:04:43,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:43,576 INFO L413 NwaCegarLoop]: 11635 mSDtfsCounter, 277 mSDsluCounter, 10273 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 21908 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:43,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 21908 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:04:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60456 states. [2022-12-14 09:04:44,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60456 to 60454. [2022-12-14 09:04:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60454 states, 60453 states have (on average 1.5621888078341852) internal successors, (94439), 60453 states have internal predecessors, (94439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60454 states to 60454 states and 94439 transitions. [2022-12-14 09:04:44,228 INFO L78 Accepts]: Start accepts. Automaton has 60454 states and 94439 transitions. Word has length 52 [2022-12-14 09:04:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:44,228 INFO L495 AbstractCegarLoop]: Abstraction has 60454 states and 94439 transitions. [2022-12-14 09:04:44,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 60454 states and 94439 transitions. [2022-12-14 09:04:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 09:04:44,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:44,229 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:44,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:04:44,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash -645596173, now seen corresponding path program 1 times [2022-12-14 09:04:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:44,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269212158] [2022-12-14 09:04:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:44,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:44,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:44,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269212158] [2022-12-14 09:04:44,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269212158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:44,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:44,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:44,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515464744] [2022-12-14 09:04:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:44,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:44,392 INFO L87 Difference]: Start difference. First operand 60454 states and 94439 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:47,176 INFO L93 Difference]: Finished difference Result 110046 states and 171349 transitions. [2022-12-14 09:04:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:47,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-12-14 09:04:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:47,251 INFO L225 Difference]: With dead ends: 110046 [2022-12-14 09:04:47,252 INFO L226 Difference]: Without dead ends: 61420 [2022-12-14 09:04:47,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:47,275 INFO L413 NwaCegarLoop]: 10157 mSDtfsCounter, 9944 mSDsluCounter, 9401 mSDsCounter, 0 mSdLazyCounter, 2796 mSolverCounterSat, 1080 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9944 SdHoareTripleChecker+Valid, 19558 SdHoareTripleChecker+Invalid, 3876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1080 IncrementalHoareTripleChecker+Valid, 2796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:47,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9944 Valid, 19558 Invalid, 3876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1080 Valid, 2796 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 09:04:47,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61420 states. [2022-12-14 09:04:47,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61420 to 60198. [2022-12-14 09:04:47,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60198 states, 60197 states have (on average 1.551821519344818) internal successors, (93415), 60197 states have internal predecessors, (93415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60198 states to 60198 states and 93415 transitions. [2022-12-14 09:04:48,045 INFO L78 Accepts]: Start accepts. Automaton has 60198 states and 93415 transitions. Word has length 57 [2022-12-14 09:04:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:48,046 INFO L495 AbstractCegarLoop]: Abstraction has 60198 states and 93415 transitions. [2022-12-14 09:04:48,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 60198 states and 93415 transitions. [2022-12-14 09:04:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 09:04:48,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:48,047 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:48,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:04:48,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2088051592, now seen corresponding path program 1 times [2022-12-14 09:04:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:48,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417149292] [2022-12-14 09:04:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:48,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:48,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417149292] [2022-12-14 09:04:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417149292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:48,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:48,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:48,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577329846] [2022-12-14 09:04:48,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:48,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:48,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:48,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:48,172 INFO L87 Difference]: Start difference. First operand 60198 states and 93415 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:51,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:51,794 INFO L93 Difference]: Finished difference Result 122229 states and 188540 transitions. [2022-12-14 09:04:51,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:51,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-12-14 09:04:51,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:51,928 INFO L225 Difference]: With dead ends: 122229 [2022-12-14 09:04:51,928 INFO L226 Difference]: Without dead ends: 62410 [2022-12-14 09:04:51,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:51,941 INFO L413 NwaCegarLoop]: 10083 mSDtfsCounter, 10224 mSDsluCounter, 9165 mSDsCounter, 0 mSdLazyCounter, 3871 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10224 SdHoareTripleChecker+Valid, 19248 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 3871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:51,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10224 Valid, 19248 Invalid, 4717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 3871 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 09:04:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62410 states. [2022-12-14 09:04:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62410 to 59892. [2022-12-14 09:04:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59892 states, 59891 states have (on average 1.548279374196457) internal successors, (92728), 59891 states have internal predecessors, (92728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59892 states to 59892 states and 92728 transitions. [2022-12-14 09:04:52,593 INFO L78 Accepts]: Start accepts. Automaton has 59892 states and 92728 transitions. Word has length 63 [2022-12-14 09:04:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:52,593 INFO L495 AbstractCegarLoop]: Abstraction has 59892 states and 92728 transitions. [2022-12-14 09:04:52,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 59892 states and 92728 transitions. [2022-12-14 09:04:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-14 09:04:52,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:52,594 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:52,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:04:52,594 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1015894375, now seen corresponding path program 1 times [2022-12-14 09:04:52,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:52,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882789981] [2022-12-14 09:04:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:04:52,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:52,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882789981] [2022-12-14 09:04:52,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882789981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:52,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:52,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:52,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927148040] [2022-12-14 09:04:52,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:52,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:52,740 INFO L87 Difference]: Start difference. First operand 59892 states and 92728 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:57,072 INFO L93 Difference]: Finished difference Result 97933 states and 150395 transitions. [2022-12-14 09:04:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:57,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-12-14 09:04:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:57,162 INFO L225 Difference]: With dead ends: 97933 [2022-12-14 09:04:57,162 INFO L226 Difference]: Without dead ends: 72925 [2022-12-14 09:04:57,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:57,182 INFO L413 NwaCegarLoop]: 19378 mSDtfsCounter, 9838 mSDsluCounter, 8887 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9838 SdHoareTripleChecker+Valid, 28265 SdHoareTripleChecker+Invalid, 5697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:57,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9838 Valid, 28265 Invalid, 5697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 09:04:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72925 states. [2022-12-14 09:04:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72925 to 71075. [2022-12-14 09:04:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71075 states, 71074 states have (on average 1.5502574781213947) internal successors, (110183), 71074 states have internal predecessors, (110183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71075 states to 71075 states and 110183 transitions. [2022-12-14 09:04:58,182 INFO L78 Accepts]: Start accepts. Automaton has 71075 states and 110183 transitions. Word has length 73 [2022-12-14 09:04:58,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:58,182 INFO L495 AbstractCegarLoop]: Abstraction has 71075 states and 110183 transitions. [2022-12-14 09:04:58,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:58,182 INFO L276 IsEmpty]: Start isEmpty. Operand 71075 states and 110183 transitions. [2022-12-14 09:04:58,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 09:04:58,183 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:58,183 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:04:58,183 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:04:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1346282361, now seen corresponding path program 1 times [2022-12-14 09:04:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:58,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919096069] [2022-12-14 09:04:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:04:58,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:58,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919096069] [2022-12-14 09:04:58,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919096069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:58,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:58,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:58,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100786650] [2022-12-14 09:04:58,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:58,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:58,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:58,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:58,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:58,249 INFO L87 Difference]: Start difference. First operand 71075 states and 110183 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:04:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:59,419 INFO L93 Difference]: Finished difference Result 138716 states and 215048 transitions. [2022-12-14 09:04:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-12-14 09:04:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:59,505 INFO L225 Difference]: With dead ends: 138716 [2022-12-14 09:04:59,505 INFO L226 Difference]: Without dead ends: 68432 [2022-12-14 09:04:59,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:59,541 INFO L413 NwaCegarLoop]: 11218 mSDtfsCounter, 9552 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9552 SdHoareTripleChecker+Valid, 12026 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:59,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9552 Valid, 12026 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:04:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68432 states. [2022-12-14 09:05:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68432 to 68430. [2022-12-14 09:05:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68430 states, 68429 states have (on average 1.5493431147612855) internal successors, (106020), 68429 states have internal predecessors, (106020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:00,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68430 states to 68430 states and 106020 transitions. [2022-12-14 09:05:00,281 INFO L78 Accepts]: Start accepts. Automaton has 68430 states and 106020 transitions. Word has length 80 [2022-12-14 09:05:00,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:00,281 INFO L495 AbstractCegarLoop]: Abstraction has 68430 states and 106020 transitions. [2022-12-14 09:05:00,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 68430 states and 106020 transitions. [2022-12-14 09:05:00,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 09:05:00,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:00,283 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:00,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:05:00,283 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1309827596, now seen corresponding path program 1 times [2022-12-14 09:05:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:00,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637457975] [2022-12-14 09:05:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:05:00,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:00,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637457975] [2022-12-14 09:05:00,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637457975] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:00,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:00,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:00,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622717797] [2022-12-14 09:05:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:00,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:00,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:00,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:00,436 INFO L87 Difference]: Start difference. First operand 68430 states and 106020 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:01,576 INFO L93 Difference]: Finished difference Result 136167 states and 210969 transitions. [2022-12-14 09:05:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:01,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-12-14 09:05:01,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:01,662 INFO L225 Difference]: With dead ends: 136167 [2022-12-14 09:05:01,663 INFO L226 Difference]: Without dead ends: 68528 [2022-12-14 09:05:01,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:01,766 INFO L413 NwaCegarLoop]: 11289 mSDtfsCounter, 276 mSDsluCounter, 10011 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 21300 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:01,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 21300 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:05:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68528 states. [2022-12-14 09:05:02,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68528 to 68526. [2022-12-14 09:05:02,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68526 states, 68525 states have (on average 1.5485735133163079) internal successors, (106116), 68525 states have internal predecessors, (106116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68526 states to 68526 states and 106116 transitions. [2022-12-14 09:05:02,530 INFO L78 Accepts]: Start accepts. Automaton has 68526 states and 106116 transitions. Word has length 83 [2022-12-14 09:05:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:02,530 INFO L495 AbstractCegarLoop]: Abstraction has 68526 states and 106116 transitions. [2022-12-14 09:05:02,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 68526 states and 106116 transitions. [2022-12-14 09:05:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 09:05:02,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:02,532 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:02,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:05:02,532 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash -557086491, now seen corresponding path program 1 times [2022-12-14 09:05:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:02,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275511797] [2022-12-14 09:05:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:05:02,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:02,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275511797] [2022-12-14 09:05:02,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275511797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:02,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:02,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:02,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013731939] [2022-12-14 09:05:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:02,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:02,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:02,791 INFO L87 Difference]: Start difference. First operand 68526 states and 106116 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:07,503 INFO L93 Difference]: Finished difference Result 93508 states and 143767 transitions. [2022-12-14 09:05:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-12-14 09:05:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:07,560 INFO L225 Difference]: With dead ends: 93508 [2022-12-14 09:05:07,560 INFO L226 Difference]: Without dead ends: 47079 [2022-12-14 09:05:07,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:07,585 INFO L413 NwaCegarLoop]: 8730 mSDtfsCounter, 28470 mSDsluCounter, 8365 mSDsCounter, 0 mSdLazyCounter, 4711 mSolverCounterSat, 2626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28470 SdHoareTripleChecker+Valid, 17095 SdHoareTripleChecker+Invalid, 7337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2626 IncrementalHoareTripleChecker+Valid, 4711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:07,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28470 Valid, 17095 Invalid, 7337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2626 Valid, 4711 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-14 09:05:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47079 states. [2022-12-14 09:05:08,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47079 to 45904. [2022-12-14 09:05:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45904 states, 45903 states have (on average 1.5315992418796156) internal successors, (70305), 45903 states have internal predecessors, (70305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45904 states to 45904 states and 70305 transitions. [2022-12-14 09:05:08,098 INFO L78 Accepts]: Start accepts. Automaton has 45904 states and 70305 transitions. Word has length 87 [2022-12-14 09:05:08,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:08,099 INFO L495 AbstractCegarLoop]: Abstraction has 45904 states and 70305 transitions. [2022-12-14 09:05:08,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:08,099 INFO L276 IsEmpty]: Start isEmpty. Operand 45904 states and 70305 transitions. [2022-12-14 09:05:08,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 09:05:08,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:08,100 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:08,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:05:08,100 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:08,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1865533877, now seen corresponding path program 1 times [2022-12-14 09:05:08,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:08,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499953926] [2022-12-14 09:05:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:08,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:05:08,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:08,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499953926] [2022-12-14 09:05:08,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499953926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:08,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:08,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:05:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737943175] [2022-12-14 09:05:08,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:08,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:05:08,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:08,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:05:08,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:08,277 INFO L87 Difference]: Start difference. First operand 45904 states and 70305 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:12,635 INFO L93 Difference]: Finished difference Result 59446 states and 89958 transitions. [2022-12-14 09:05:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:05:12,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-14 09:05:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:12,674 INFO L225 Difference]: With dead ends: 59446 [2022-12-14 09:05:12,675 INFO L226 Difference]: Without dead ends: 35779 [2022-12-14 09:05:12,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:05:12,689 INFO L413 NwaCegarLoop]: 16026 mSDtfsCounter, 19885 mSDsluCounter, 8365 mSDsCounter, 0 mSdLazyCounter, 6167 mSolverCounterSat, 1690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19885 SdHoareTripleChecker+Valid, 24391 SdHoareTripleChecker+Invalid, 7857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1690 IncrementalHoareTripleChecker+Valid, 6167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:12,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19885 Valid, 24391 Invalid, 7857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1690 Valid, 6167 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:05:12,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35779 states. [2022-12-14 09:05:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35779 to 34604. [2022-12-14 09:05:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34604 states, 34603 states have (on average 1.5253879721411439) internal successors, (52783), 34603 states have internal predecessors, (52783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34604 states to 34604 states and 52783 transitions. [2022-12-14 09:05:13,077 INFO L78 Accepts]: Start accepts. Automaton has 34604 states and 52783 transitions. Word has length 89 [2022-12-14 09:05:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:13,077 INFO L495 AbstractCegarLoop]: Abstraction has 34604 states and 52783 transitions. [2022-12-14 09:05:13,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 34604 states and 52783 transitions. [2022-12-14 09:05:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 09:05:13,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:13,079 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:13,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:05:13,079 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1292572411, now seen corresponding path program 1 times [2022-12-14 09:05:13,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:13,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355899213] [2022-12-14 09:05:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:13,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:05:13,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:13,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355899213] [2022-12-14 09:05:13,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355899213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:13,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:13,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277846749] [2022-12-14 09:05:13,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:13,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:13,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:13,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:13,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:13,135 INFO L87 Difference]: Start difference. First operand 34604 states and 52783 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:14,223 INFO L93 Difference]: Finished difference Result 35773 states and 54506 transitions. [2022-12-14 09:05:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 09:05:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:14,264 INFO L225 Difference]: With dead ends: 35773 [2022-12-14 09:05:14,264 INFO L226 Difference]: Without dead ends: 35771 [2022-12-14 09:05:14,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:14,271 INFO L413 NwaCegarLoop]: 10926 mSDtfsCounter, 931 mSDsluCounter, 10159 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 21085 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:14,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 21085 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 09:05:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35771 states. [2022-12-14 09:05:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35771 to 35769. [2022-12-14 09:05:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35769 states, 35768 states have (on average 1.5234846790427197) internal successors, (54492), 35768 states have internal predecessors, (54492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35769 states to 35769 states and 54492 transitions. [2022-12-14 09:05:14,650 INFO L78 Accepts]: Start accepts. Automaton has 35769 states and 54492 transitions. Word has length 97 [2022-12-14 09:05:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:14,650 INFO L495 AbstractCegarLoop]: Abstraction has 35769 states and 54492 transitions. [2022-12-14 09:05:14,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 35769 states and 54492 transitions. [2022-12-14 09:05:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 09:05:14,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:14,652 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:14,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:05:14,652 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:14,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1863744109, now seen corresponding path program 1 times [2022-12-14 09:05:14,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:14,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194635380] [2022-12-14 09:05:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:14,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:05:14,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:14,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194635380] [2022-12-14 09:05:14,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194635380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:14,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:14,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:14,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871069728] [2022-12-14 09:05:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:14,718 INFO L87 Difference]: Start difference. First operand 35769 states and 54492 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:16,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:16,046 INFO L93 Difference]: Finished difference Result 60063 states and 91307 transitions. [2022-12-14 09:05:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:16,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-14 09:05:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:16,081 INFO L225 Difference]: With dead ends: 60063 [2022-12-14 09:05:16,081 INFO L226 Difference]: Without dead ends: 35465 [2022-12-14 09:05:16,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:16,091 INFO L413 NwaCegarLoop]: 9904 mSDtfsCounter, 10140 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10140 SdHoareTripleChecker+Valid, 9904 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:16,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10140 Valid, 9904 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 09:05:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35465 states. [2022-12-14 09:05:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35465 to 35465. [2022-12-14 09:05:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35465 states, 35464 states have (on average 1.5150575231220393) internal successors, (53730), 35464 states have internal predecessors, (53730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 53730 transitions. [2022-12-14 09:05:16,417 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 53730 transitions. Word has length 98 [2022-12-14 09:05:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:16,417 INFO L495 AbstractCegarLoop]: Abstraction has 35465 states and 53730 transitions. [2022-12-14 09:05:16,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 53730 transitions. [2022-12-14 09:05:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 09:05:16,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:16,419 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:16,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:05:16,419 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash -756484602, now seen corresponding path program 1 times [2022-12-14 09:05:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:16,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41472707] [2022-12-14 09:05:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:16,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:05:16,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:16,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41472707] [2022-12-14 09:05:16,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41472707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:16,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:16,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:16,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752667179] [2022-12-14 09:05:16,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:16,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:16,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:16,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:16,478 INFO L87 Difference]: Start difference. First operand 35465 states and 53730 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:17,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:17,353 INFO L93 Difference]: Finished difference Result 59166 states and 89308 transitions. [2022-12-14 09:05:17,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:17,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-12-14 09:05:17,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:17,379 INFO L225 Difference]: With dead ends: 59166 [2022-12-14 09:05:17,379 INFO L226 Difference]: Without dead ends: 25645 [2022-12-14 09:05:17,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:17,392 INFO L413 NwaCegarLoop]: 10912 mSDtfsCounter, 288 mSDsluCounter, 9795 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 20707 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:17,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 20707 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:05:17,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25645 states. [2022-12-14 09:05:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25645 to 25643. [2022-12-14 09:05:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25643 states, 25642 states have (on average 1.4984010607596912) internal successors, (38422), 25642 states have internal predecessors, (38422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25643 states to 25643 states and 38422 transitions. [2022-12-14 09:05:17,645 INFO L78 Accepts]: Start accepts. Automaton has 25643 states and 38422 transitions. Word has length 113 [2022-12-14 09:05:17,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:17,646 INFO L495 AbstractCegarLoop]: Abstraction has 25643 states and 38422 transitions. [2022-12-14 09:05:17,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand 25643 states and 38422 transitions. [2022-12-14 09:05:17,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 09:05:17,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:17,649 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:17,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:05:17,649 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1141324682, now seen corresponding path program 1 times [2022-12-14 09:05:17,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:17,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532992732] [2022-12-14 09:05:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:17,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-14 09:05:17,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:17,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532992732] [2022-12-14 09:05:17,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532992732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:17,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:17,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:17,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992454807] [2022-12-14 09:05:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:17,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:17,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:17,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:17,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:17,832 INFO L87 Difference]: Start difference. First operand 25643 states and 38422 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:20,705 INFO L93 Difference]: Finished difference Result 33551 states and 49402 transitions. [2022-12-14 09:05:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:20,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 09:05:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:20,733 INFO L225 Difference]: With dead ends: 33551 [2022-12-14 09:05:20,733 INFO L226 Difference]: Without dead ends: 26562 [2022-12-14 09:05:20,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:20,742 INFO L413 NwaCegarLoop]: 9482 mSDtfsCounter, 9357 mSDsluCounter, 8037 mSDsCounter, 0 mSdLazyCounter, 3750 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9357 SdHoareTripleChecker+Valid, 17519 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 3750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:20,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9357 Valid, 17519 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 3750 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 09:05:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26562 states. [2022-12-14 09:05:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26562 to 19328. [2022-12-14 09:05:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19328 states, 19327 states have (on average 1.4839343923009263) internal successors, (28680), 19327 states have internal predecessors, (28680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19328 states to 19328 states and 28680 transitions. [2022-12-14 09:05:20,959 INFO L78 Accepts]: Start accepts. Automaton has 19328 states and 28680 transitions. Word has length 117 [2022-12-14 09:05:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:20,960 INFO L495 AbstractCegarLoop]: Abstraction has 19328 states and 28680 transitions. [2022-12-14 09:05:20,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 19328 states and 28680 transitions. [2022-12-14 09:05:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-14 09:05:20,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:20,961 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:20,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:05:20,961 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:20,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:20,962 INFO L85 PathProgramCache]: Analyzing trace with hash 573768167, now seen corresponding path program 1 times [2022-12-14 09:05:20,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:20,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110537986] [2022-12-14 09:05:20,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:20,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:21,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:21,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110537986] [2022-12-14 09:05:21,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110537986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:21,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:21,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:21,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634909534] [2022-12-14 09:05:21,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:21,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:21,039 INFO L87 Difference]: Start difference. First operand 19328 states and 28680 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:21,883 INFO L93 Difference]: Finished difference Result 35711 states and 53071 transitions. [2022-12-14 09:05:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:21,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-12-14 09:05:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:21,901 INFO L225 Difference]: With dead ends: 35711 [2022-12-14 09:05:21,901 INFO L226 Difference]: Without dead ends: 17727 [2022-12-14 09:05:21,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:21,910 INFO L413 NwaCegarLoop]: 10413 mSDtfsCounter, 8551 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8551 SdHoareTripleChecker+Valid, 11620 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:21,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8551 Valid, 11620 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:05:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17727 states. [2022-12-14 09:05:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17727 to 17725. [2022-12-14 09:05:22,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17725 states, 17724 states have (on average 1.4838636876551567) internal successors, (26300), 17724 states have internal predecessors, (26300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 26300 transitions. [2022-12-14 09:05:22,076 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 26300 transitions. Word has length 135 [2022-12-14 09:05:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:22,077 INFO L495 AbstractCegarLoop]: Abstraction has 17725 states and 26300 transitions. [2022-12-14 09:05:22,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:22,077 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 26300 transitions. [2022-12-14 09:05:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-14 09:05:22,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:22,078 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:22,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:05:22,078 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:22,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1953273572, now seen corresponding path program 1 times [2022-12-14 09:05:22,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:22,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069632450] [2022-12-14 09:05:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:22,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:22,166 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:22,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:22,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069632450] [2022-12-14 09:05:22,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069632450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:22,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:22,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:22,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652796035] [2022-12-14 09:05:22,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:22,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:22,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:22,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:22,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:22,168 INFO L87 Difference]: Start difference. First operand 17725 states and 26300 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:22,871 INFO L93 Difference]: Finished difference Result 28899 states and 42827 transitions. [2022-12-14 09:05:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-14 09:05:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:22,883 INFO L225 Difference]: With dead ends: 28899 [2022-12-14 09:05:22,883 INFO L226 Difference]: Without dead ends: 12905 [2022-12-14 09:05:22,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:22,890 INFO L413 NwaCegarLoop]: 10134 mSDtfsCounter, 289 mSDsluCounter, 9058 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 19192 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:22,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 19192 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:05:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12905 states. [2022-12-14 09:05:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12905 to 12903. [2022-12-14 09:05:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12903 states, 12902 states have (on average 1.4720973492481786) internal successors, (18993), 12902 states have internal predecessors, (18993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12903 states to 12903 states and 18993 transitions. [2022-12-14 09:05:23,023 INFO L78 Accepts]: Start accepts. Automaton has 12903 states and 18993 transitions. Word has length 137 [2022-12-14 09:05:23,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:23,023 INFO L495 AbstractCegarLoop]: Abstraction has 12903 states and 18993 transitions. [2022-12-14 09:05:23,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:23,023 INFO L276 IsEmpty]: Start isEmpty. Operand 12903 states and 18993 transitions. [2022-12-14 09:05:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 09:05:23,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:23,024 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:23,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:05:23,025 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 372632353, now seen corresponding path program 1 times [2022-12-14 09:05:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962239168] [2022-12-14 09:05:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:23,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:23,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962239168] [2022-12-14 09:05:23,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962239168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:23,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:23,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:23,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732602941] [2022-12-14 09:05:23,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:23,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:23,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:23,102 INFO L87 Difference]: Start difference. First operand 12903 states and 18993 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:23,832 INFO L93 Difference]: Finished difference Result 23249 states and 34300 transitions. [2022-12-14 09:05:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-12-14 09:05:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:23,842 INFO L225 Difference]: With dead ends: 23249 [2022-12-14 09:05:23,842 INFO L226 Difference]: Without dead ends: 12270 [2022-12-14 09:05:23,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:23,846 INFO L413 NwaCegarLoop]: 10047 mSDtfsCounter, 7181 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7181 SdHoareTripleChecker+Valid, 12246 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:23,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7181 Valid, 12246 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 09:05:23,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12270 states. [2022-12-14 09:05:23,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12270 to 12268. [2022-12-14 09:05:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12268 states, 12267 states have (on average 1.470856770196462) internal successors, (18043), 12267 states have internal predecessors, (18043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12268 states to 12268 states and 18043 transitions. [2022-12-14 09:05:23,951 INFO L78 Accepts]: Start accepts. Automaton has 12268 states and 18043 transitions. Word has length 143 [2022-12-14 09:05:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 12268 states and 18043 transitions. [2022-12-14 09:05:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 12268 states and 18043 transitions. [2022-12-14 09:05:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-14 09:05:23,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:23,953 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:23,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 09:05:23,953 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1357924710, now seen corresponding path program 1 times [2022-12-14 09:05:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978021940] [2022-12-14 09:05:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:24,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:24,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978021940] [2022-12-14 09:05:24,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978021940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:24,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:24,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:24,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259813123] [2022-12-14 09:05:24,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:24,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:24,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:24,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:24,017 INFO L87 Difference]: Start difference. First operand 12268 states and 18043 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:24,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:24,619 INFO L93 Difference]: Finished difference Result 22644 states and 33374 transitions. [2022-12-14 09:05:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-12-14 09:05:24,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:24,630 INFO L225 Difference]: With dead ends: 22644 [2022-12-14 09:05:24,630 INFO L226 Difference]: Without dead ends: 12300 [2022-12-14 09:05:24,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:24,635 INFO L413 NwaCegarLoop]: 10104 mSDtfsCounter, 245 mSDsluCounter, 9074 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 19178 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:24,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 19178 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:05:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12300 states. [2022-12-14 09:05:24,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12300 to 12298. [2022-12-14 09:05:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12298 states, 12297 states have (on average 1.4697080588761486) internal successors, (18073), 12297 states have internal predecessors, (18073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12298 states to 12298 states and 18073 transitions. [2022-12-14 09:05:24,758 INFO L78 Accepts]: Start accepts. Automaton has 12298 states and 18073 transitions. Word has length 147 [2022-12-14 09:05:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:24,759 INFO L495 AbstractCegarLoop]: Abstraction has 12298 states and 18073 transitions. [2022-12-14 09:05:24,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 12298 states and 18073 transitions. [2022-12-14 09:05:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-12-14 09:05:24,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:24,761 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:05:24,761 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:24,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:24,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1695360865, now seen corresponding path program 1 times [2022-12-14 09:05:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:24,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795530974] [2022-12-14 09:05:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:24,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:24,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795530974] [2022-12-14 09:05:24,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795530974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:24,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:24,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:24,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16892649] [2022-12-14 09:05:24,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:24,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:24,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:24,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:24,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:24,854 INFO L87 Difference]: Start difference. First operand 12298 states and 18073 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:25,323 INFO L93 Difference]: Finished difference Result 20372 states and 30014 transitions. [2022-12-14 09:05:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:25,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2022-12-14 09:05:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:25,333 INFO L225 Difference]: With dead ends: 20372 [2022-12-14 09:05:25,333 INFO L226 Difference]: Without dead ends: 9998 [2022-12-14 09:05:25,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:25,338 INFO L413 NwaCegarLoop]: 8179 mSDtfsCounter, 5963 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5963 SdHoareTripleChecker+Valid, 9865 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:25,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5963 Valid, 9865 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:05:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2022-12-14 09:05:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9996. [2022-12-14 09:05:25,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9996 states, 9995 states have (on average 1.4682341170585294) internal successors, (14675), 9995 states have internal predecessors, (14675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9996 states to 9996 states and 14675 transitions. [2022-12-14 09:05:25,426 INFO L78 Accepts]: Start accepts. Automaton has 9996 states and 14675 transitions. Word has length 177 [2022-12-14 09:05:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:25,426 INFO L495 AbstractCegarLoop]: Abstraction has 9996 states and 14675 transitions. [2022-12-14 09:05:25,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 9996 states and 14675 transitions. [2022-12-14 09:05:25,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-14 09:05:25,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:25,428 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:25,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 09:05:25,429 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:25,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:25,429 INFO L85 PathProgramCache]: Analyzing trace with hash 781182402, now seen corresponding path program 1 times [2022-12-14 09:05:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:25,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109413417] [2022-12-14 09:05:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 09:05:25,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:25,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109413417] [2022-12-14 09:05:25,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109413417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:25,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:25,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:05:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196658276] [2022-12-14 09:05:25,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:25,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:05:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:25,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:05:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:25,502 INFO L87 Difference]: Start difference. First operand 9996 states and 14675 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:25,756 INFO L93 Difference]: Finished difference Result 10398 states and 15236 transitions. [2022-12-14 09:05:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:05:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-12-14 09:05:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:25,758 INFO L225 Difference]: With dead ends: 10398 [2022-12-14 09:05:25,758 INFO L226 Difference]: Without dead ends: 2332 [2022-12-14 09:05:25,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:05:25,761 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 238 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:25,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 3852 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:05:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2022-12-14 09:05:25,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2330. [2022-12-14 09:05:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2329 states have (on average 1.421210820094461) internal successors, (3310), 2329 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3310 transitions. [2022-12-14 09:05:25,778 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3310 transitions. Word has length 182 [2022-12-14 09:05:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:25,778 INFO L495 AbstractCegarLoop]: Abstraction has 2330 states and 3310 transitions. [2022-12-14 09:05:25,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:05:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3310 transitions. [2022-12-14 09:05:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 09:05:25,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:25,780 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:25,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 09:05:25,780 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:05:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1019673503, now seen corresponding path program 1 times [2022-12-14 09:05:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399428199] [2022-12-14 09:05:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:05:25,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:05:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:05:26,017 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:05:26,017 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:05:26,018 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:05:26,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 09:05:26,021 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:26,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:05:26,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:05:26 BoogieIcfgContainer [2022-12-14 09:05:26,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:05:26,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:05:26,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:05:26,147 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:05:26,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09" (3/4) ... [2022-12-14 09:05:26,149 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:05:26,246 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:05:26,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:05:26,247 INFO L158 Benchmark]: Toolchain (without parser) took 90429.77ms. Allocated memory was 167.8MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 116.9MB in the beginning and 997.4MB in the end (delta: -880.5MB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2022-12-14 09:05:26,247 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:05:26,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2136.19ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 116.5MB in the beginning and 62.2MB in the end (delta: 54.3MB). Peak memory consumption was 187.4MB. Max. memory is 16.1GB. [2022-12-14 09:05:26,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 595.67ms. Allocated memory was 243.3MB in the beginning and 379.6MB in the end (delta: 136.3MB). Free memory was 62.2MB in the beginning and 150.3MB in the end (delta: -88.1MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-12-14 09:05:26,248 INFO L158 Benchmark]: Boogie Preprocessor took 626.03ms. Allocated memory was 379.6MB in the beginning and 855.6MB in the end (delta: 476.1MB). Free memory was 150.3MB in the beginning and 553.6MB in the end (delta: -403.4MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2022-12-14 09:05:26,249 INFO L158 Benchmark]: RCFGBuilder took 10610.25ms. Allocated memory was 855.6MB in the beginning and 1.9GB in the end (delta: 1.0GB). Free memory was 553.6MB in the beginning and 491.4MB in the end (delta: 62.2MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-14 09:05:26,249 INFO L158 Benchmark]: TraceAbstraction took 76356.85ms. Allocated memory was 1.9GB in the beginning and 4.1GB in the end (delta: 2.2GB). Free memory was 490.4MB in the beginning and 1.0GB in the end (delta: -541.6MB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-12-14 09:05:26,249 INFO L158 Benchmark]: Witness Printer took 99.13ms. Allocated memory is still 4.1GB. Free memory was 1.0GB in the beginning and 997.4MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 09:05:26,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2136.19ms. Allocated memory was 167.8MB in the beginning and 243.3MB in the end (delta: 75.5MB). Free memory was 116.5MB in the beginning and 62.2MB in the end (delta: 54.3MB). Peak memory consumption was 187.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 595.67ms. Allocated memory was 243.3MB in the beginning and 379.6MB in the end (delta: 136.3MB). Free memory was 62.2MB in the beginning and 150.3MB in the end (delta: -88.1MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 626.03ms. Allocated memory was 379.6MB in the beginning and 855.6MB in the end (delta: 476.1MB). Free memory was 150.3MB in the beginning and 553.6MB in the end (delta: -403.4MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. * RCFGBuilder took 10610.25ms. Allocated memory was 855.6MB in the beginning and 1.9GB in the end (delta: 1.0GB). Free memory was 553.6MB in the beginning and 491.4MB in the end (delta: 62.2MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * TraceAbstraction took 76356.85ms. Allocated memory was 1.9GB in the beginning and 4.1GB in the end (delta: 2.2GB). Free memory was 490.4MB in the beginning and 1.0GB in the end (delta: -541.6MB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 99.13ms. Allocated memory is still 4.1GB. Free memory was 1.0GB in the beginning and 997.4MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 49140]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L7] int m_getInetAddress = 1; [L8] int m_getOOBInline = 2; [L9] int m_getLocalPort = 3; [L10] int m_isInputShutdown = 4; [L11] int m_setTcpNoDelay = 5; [L12] int m_isConnected = 6; [L13] int m_getKeepAlive = 7; [L14] int m_getLocalAddress = 8; [L15] int m_bind = 9; [L16] int m_getChannel = 10; [L17] int m_getSoLinger = 11; [L18] int m_getImpl = 12; [L19] int m_getTcpNoDelay = 13; [L20] int m_getSoTimeout = 14; [L21] int m_isOutputShutdown = 15; [L22] int m_postAccept = 16; [L23] int m_close = 17; [L24] int m_setOOBInline = 18; [L25] int m_getLocalSocketAddress = 19; [L26] int m_getReceiveBufferSize = 20; [L27] int m_setReuseAddress = 21; [L28] int m_getTrafficClass = 22; [L29] int m_getReuseAddress = 23; [L30] int m_createImpl = 24; [L31] int m_setCreated = 25; [L32] int m_setKeepAlive = 26; [L33] int m_getInputStream = 27; [L34] int m_shutdownOutput = 28; [L35] int m_shutdownInput = 29; [L36] int m_setPerformancePreferences = 30; [L37] int m_getPort = 31; [L38] int m_sendUrgentData = 32; [L39] int m_isClosed = 33; [L40] int m_isBound = 34; [L41] int m_setBound = 35; [L42] int m_getSendBufferSize = 36; [L43] int m_getOutputStream = 37; [L44] int m_setConnected = 38; [L45] int m_Socket = 39; [L46] int m_getRemoteSocketAddress = 40; [L47] int m_setReceiveBufferSize_1 = 41; [L48] int m_setReceiveBufferSize_2 = 42; [L49] int m_connect2_1 = 43; [L50] int m_connect2_2 = 44; [L51] int m_setSoLinger_1 = 45; [L52] int m_setSoLinger_2 = 46; [L53] int m_connect1_1 = 47; [L54] int m_connect1_2 = 48; [L55] int m_setTrafficClass_1 = 49; [L56] int m_setTrafficClass_2 = 50; [L57] int m_setSoTimeout_1 = 51; [L58] int m_setSoTimeout_2 = 52; [L59] int m_setSendBufferSize_1 = 53; [L60] int m_setSendBufferSize_2 = 54; [L61] int m_setSocketImplFactory_1 = 55; [L62] int m_setSocketImplFactory_2 = 56; [L67] int q = 0; [L68] int method_id; [L71] int this_oldImpl = 0; [L72] int this_factory = 0; [L73] int this_shutOut = 0; [L74] int this_created = 0; [L75] int this_shutIn = 0; [L76] int this_closed = 0; [L77] int this_bound = 0; [L78] int this_impl = 1; [L79] int this_connected = 0; VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, q=0, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L82] COND TRUE 1 [L85] _Bool P1=__VERIFIER_nondet_int(); [L86] int P2=__VERIFIER_nondet_int(); [L87] _Bool P3=__VERIFIER_nondet_int(); [L88] _Bool P4=__VERIFIER_nondet_int(); [L89] _Bool P5=__VERIFIER_nondet_int(); [L90] _Bool P6=__VERIFIER_nondet_int(); [L91] int P7=__VERIFIER_nondet_int(); [L92] int P8=__VERIFIER_nondet_int(); [L93] int P9=__VERIFIER_nondet_int(); [L94] int P10=__VERIFIER_nondet_int(); [L95] int P11=__VERIFIER_nondet_int(); [L96] int P12=__VERIFIER_nondet_int(); [L97] int P13=__VERIFIER_nondet_int(); [L98] int P14=__VERIFIER_nondet_int(); [L99] int P15=__VERIFIER_nondet_int(); [L100] int P16=__VERIFIER_nondet_int(); [L101] _Bool P17=__VERIFIER_nondet_int(); [L102] int P18=__VERIFIER_nondet_int(); [L103] _Bool P19=__VERIFIER_nondet_int(); [L104] int P20=__VERIFIER_nondet_int(); [L105] int P21=__VERIFIER_nondet_int(); [L106] int P22=__VERIFIER_nondet_int(); [L107] int P23=__VERIFIER_nondet_int(); [L108] int P24=__VERIFIER_nondet_int(); [L109] int P25=__VERIFIER_nondet_int(); [L110] int P26=__VERIFIER_nondet_int(); [L111] int P27=__VERIFIER_nondet_int(); [L112] int P28=__VERIFIER_nondet_int(); [L113] int P29=__VERIFIER_nondet_int(); [L114] int P30=__VERIFIER_nondet_int(); [L118] COND TRUE q == 0 [L119] COND TRUE __VERIFIER_nondet_int() [L123] method_id = 39 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=1, P10=5, P11=4, P12=0, P13=0, P14=0, P15=6, P16=0, P17=1, P18=-2, P19=1, P2=0, P20=-3, P21=0, P22=0, P23=0, P24=0, P25=-1, P26=0, P27=0, P28=0, P29=-6, P3=1, P30=-4, P4=0, P5=1, P6=1, P7=-5, P8=0, P9=7, q=0, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L125] COND FALSE !(0) [L129] q = 2 [L131] this_factory=0 [L131] this_shutIn=0 [L131] this_connected=0 [L131] this_closed=0 [L131] this_shutOut=0 [L131] this_created=0 [L131] this_impl=1 [L131] this_bound=0 [L131] this_oldImpl=0 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=1, P10=5, P11=4, P12=0, P13=0, P14=0, P15=6, P16=0, P17=1, P18=-2, P19=1, P2=0, P20=-3, P21=0, P22=0, P23=0, P24=0, P25=-1, P26=0, P27=0, P28=0, P29=-6, P3=1, P30=-4, P4=0, P5=1, P6=1, P7=-5, P8=0, P9=7, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L82] COND TRUE 1 [L85] _Bool P1=__VERIFIER_nondet_int(); [L86] int P2=__VERIFIER_nondet_int(); [L87] _Bool P3=__VERIFIER_nondet_int(); [L88] _Bool P4=__VERIFIER_nondet_int(); [L89] _Bool P5=__VERIFIER_nondet_int(); [L90] _Bool P6=__VERIFIER_nondet_int(); [L91] int P7=__VERIFIER_nondet_int(); [L92] int P8=__VERIFIER_nondet_int(); [L93] int P9=__VERIFIER_nondet_int(); [L94] int P10=__VERIFIER_nondet_int(); [L95] int P11=__VERIFIER_nondet_int(); [L96] int P12=__VERIFIER_nondet_int(); [L97] int P13=__VERIFIER_nondet_int(); [L98] int P14=__VERIFIER_nondet_int(); [L99] int P15=__VERIFIER_nondet_int(); [L100] int P16=__VERIFIER_nondet_int(); [L101] _Bool P17=__VERIFIER_nondet_int(); [L102] int P18=__VERIFIER_nondet_int(); [L103] _Bool P19=__VERIFIER_nondet_int(); [L104] int P20=__VERIFIER_nondet_int(); [L105] int P21=__VERIFIER_nondet_int(); [L106] int P22=__VERIFIER_nondet_int(); [L107] int P23=__VERIFIER_nondet_int(); [L108] int P24=__VERIFIER_nondet_int(); [L109] int P25=__VERIFIER_nondet_int(); [L110] int P26=__VERIFIER_nondet_int(); [L111] int P27=__VERIFIER_nondet_int(); [L112] int P28=__VERIFIER_nondet_int(); [L113] int P29=__VERIFIER_nondet_int(); [L114] int P30=__VERIFIER_nondet_int(); [L118] COND FALSE !(q == 0) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=10, P11=9, P12=0, P13=0, P14=0, P15=11, P16=0, P17=1, P18=8, P19=1, P2=0, P20=-8, P21=0, P22=0, P23=0, P24=0, P25=-7, P26=0, P27=0, P28=0, P29=-11, P3=1, P30=-9, P4=1, P5=0, P6=0, P7=-10, P8=0, P9=-12, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L138] COND FALSE !(q == 1) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=39, P1=0, P10=10, P11=9, P12=0, P13=0, P14=0, P15=11, P16=0, P17=1, P18=8, P19=1, P2=0, P20=-8, P21=0, P22=0, P23=0, P24=0, P25=-7, P26=0, P27=0, P28=0, P29=-11, P3=1, P30=-9, P4=1, P5=0, P6=0, P7=-10, P8=0, P9=-12, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L750] COND TRUE q == 2 [L751] COND FALSE !(__VERIFIER_nondet_int()) [L767] COND FALSE !(__VERIFIER_nondet_int()) [L783] COND FALSE !(__VERIFIER_nondet_int()) [L799] COND FALSE !(__VERIFIER_nondet_int()) [L815] COND FALSE !(__VERIFIER_nondet_int()) [L831] COND FALSE !(__VERIFIER_nondet_int()) [L847] COND FALSE !(__VERIFIER_nondet_int()) [L863] COND FALSE !(__VERIFIER_nondet_int()) [L879] COND FALSE !(__VERIFIER_nondet_int()) [L895] COND FALSE !(__VERIFIER_nondet_int()) [L911] COND FALSE !(__VERIFIER_nondet_int()) [L927] COND FALSE !(__VERIFIER_nondet_int()) [L943] COND FALSE !(__VERIFIER_nondet_int()) [L959] COND FALSE !(__VERIFIER_nondet_int()) [L975] COND FALSE !(__VERIFIER_nondet_int()) [L991] COND FALSE !(__VERIFIER_nondet_int()) [L1007] COND FALSE !(__VERIFIER_nondet_int()) [L1023] COND FALSE !(__VERIFIER_nondet_int()) [L1039] COND FALSE !(__VERIFIER_nondet_int()) [L1055] COND FALSE !(__VERIFIER_nondet_int()) [L1071] COND FALSE !(__VERIFIER_nondet_int()) [L1087] COND FALSE !(__VERIFIER_nondet_int()) [L1103] COND FALSE !(__VERIFIER_nondet_int()) [L1119] COND FALSE !(__VERIFIER_nondet_int()) [L1135] COND FALSE !(__VERIFIER_nondet_int()) [L1151] COND FALSE !(__VERIFIER_nondet_int()) [L1167] COND FALSE !(__VERIFIER_nondet_int()) [L1183] COND FALSE !(__VERIFIER_nondet_int()) [L1199] COND FALSE !(__VERIFIER_nondet_int()) [L1215] COND FALSE !(__VERIFIER_nondet_int()) [L1231] COND FALSE !(__VERIFIER_nondet_int()) [L1247] COND FALSE !(__VERIFIER_nondet_int()) [L1263] COND FALSE !(__VERIFIER_nondet_int()) [L1279] COND FALSE !(__VERIFIER_nondet_int()) [L1295] COND FALSE !(__VERIFIER_nondet_int()) [L1311] COND FALSE !(__VERIFIER_nondet_int()) [L1327] COND FALSE !(__VERIFIER_nondet_int()) [L1343] COND FALSE !(__VERIFIER_nondet_int()) [L1359] COND FALSE !(__VERIFIER_nondet_int()) [L1375] COND FALSE !(__VERIFIER_nondet_int()) [L1391] COND FALSE !(__VERIFIER_nondet_int()) [L1407] COND FALSE !(__VERIFIER_nondet_int()) [L1423] COND FALSE !(__VERIFIER_nondet_int()) [L1439] COND FALSE !(__VERIFIER_nondet_int()) [L1455] COND FALSE !(__VERIFIER_nondet_int()) [L1471] COND FALSE !(__VERIFIER_nondet_int()) [L1487] COND FALSE !(__VERIFIER_nondet_int()) [L1503] COND FALSE !(__VERIFIER_nondet_int()) [L1519] COND FALSE !(__VERIFIER_nondet_int()) [L1535] COND FALSE !(__VERIFIER_nondet_int()) [L1551] COND FALSE !(__VERIFIER_nondet_int()) [L1567] COND FALSE !(__VERIFIER_nondet_int()) [L1583] COND FALSE !(__VERIFIER_nondet_int()) [L1599] COND FALSE !(__VERIFIER_nondet_int()) [L1615] COND FALSE !(__VERIFIER_nondet_int()) [L1631] COND FALSE !(__VERIFIER_nondet_int()) [L1647] COND FALSE !(__VERIFIER_nondet_int()) [L1663] COND FALSE !(__VERIFIER_nondet_int()) [L1679] COND FALSE !(__VERIFIER_nondet_int()) [L1695] COND FALSE !(__VERIFIER_nondet_int()) [L1711] COND FALSE !(__VERIFIER_nondet_int()) [L1727] COND FALSE !(__VERIFIER_nondet_int()) [L1743] COND FALSE !(__VERIFIER_nondet_int()) [L1759] COND FALSE !(__VERIFIER_nondet_int()) [L1775] COND FALSE !(__VERIFIER_nondet_int()) [L1791] COND FALSE !(__VERIFIER_nondet_int()) [L1807] COND FALSE !(__VERIFIER_nondet_int()) [L1823] COND FALSE !(__VERIFIER_nondet_int()) [L1839] COND FALSE !(__VERIFIER_nondet_int()) [L1855] COND FALSE !(__VERIFIER_nondet_int()) [L1871] COND FALSE !(__VERIFIER_nondet_int()) [L1887] COND FALSE !(__VERIFIER_nondet_int()) [L1903] COND FALSE !(__VERIFIER_nondet_int()) [L1919] COND FALSE !(__VERIFIER_nondet_int()) [L1935] COND FALSE !(__VERIFIER_nondet_int()) [L1951] COND FALSE !(__VERIFIER_nondet_int()) [L1967] COND FALSE !(__VERIFIER_nondet_int()) [L1983] COND FALSE !(__VERIFIER_nondet_int()) [L1999] COND FALSE !(__VERIFIER_nondet_int()) [L2015] COND FALSE !(__VERIFIER_nondet_int()) [L2031] COND FALSE !(__VERIFIER_nondet_int()) [L2047] COND FALSE !(__VERIFIER_nondet_int()) [L2063] COND FALSE !(__VERIFIER_nondet_int()) [L2079] COND TRUE __VERIFIER_nondet_int() [L2081] COND TRUE !(P1 != 0) [L2083] method_id = 56 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=0, P10=10, P11=9, P12=0, P13=0, P14=0, P15=11, P16=0, P17=1, P18=8, P19=1, P2=0, P20=-8, P21=0, P22=0, P23=0, P24=0, P25=-7, P26=0, P27=0, P28=0, P29=-11, P3=1, P30=-9, P4=1, P5=0, P6=0, P7=-10, P8=0, P9=-12, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=0, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L2085] COND FALSE !(((this_factory != 0) && !(P30 != 0))) [L2089] q = 2 [L2091] this_factory=P30 [L2091] this_shutIn=this_shutIn [L2091] this_connected=this_connected [L2091] this_closed=this_closed [L2091] this_shutOut=this_shutOut [L2091] this_created=this_created [L2091] this_impl=this_impl [L2091] this_bound=this_bound [L2091] this_oldImpl=this_oldImpl VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=0, P10=10, P11=9, P12=0, P13=0, P14=0, P15=11, P16=0, P17=1, P18=8, P19=1, P2=0, P20=-8, P21=0, P22=0, P23=0, P24=0, P25=-7, P26=0, P27=0, P28=0, P29=-11, P3=1, P30=-9, P4=1, P5=0, P6=0, P7=-10, P8=0, P9=-12, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L82] COND TRUE 1 [L85] _Bool P1=__VERIFIER_nondet_int(); [L86] int P2=__VERIFIER_nondet_int(); [L87] _Bool P3=__VERIFIER_nondet_int(); [L88] _Bool P4=__VERIFIER_nondet_int(); [L89] _Bool P5=__VERIFIER_nondet_int(); [L90] _Bool P6=__VERIFIER_nondet_int(); [L91] int P7=__VERIFIER_nondet_int(); [L92] int P8=__VERIFIER_nondet_int(); [L93] int P9=__VERIFIER_nondet_int(); [L94] int P10=__VERIFIER_nondet_int(); [L95] int P11=__VERIFIER_nondet_int(); [L96] int P12=__VERIFIER_nondet_int(); [L97] int P13=__VERIFIER_nondet_int(); [L98] int P14=__VERIFIER_nondet_int(); [L99] int P15=__VERIFIER_nondet_int(); [L100] int P16=__VERIFIER_nondet_int(); [L101] _Bool P17=__VERIFIER_nondet_int(); [L102] int P18=__VERIFIER_nondet_int(); [L103] _Bool P19=__VERIFIER_nondet_int(); [L104] int P20=__VERIFIER_nondet_int(); [L105] int P21=__VERIFIER_nondet_int(); [L106] int P22=__VERIFIER_nondet_int(); [L107] int P23=__VERIFIER_nondet_int(); [L108] int P24=__VERIFIER_nondet_int(); [L109] int P25=__VERIFIER_nondet_int(); [L110] int P26=__VERIFIER_nondet_int(); [L111] int P27=__VERIFIER_nondet_int(); [L112] int P28=__VERIFIER_nondet_int(); [L113] int P29=__VERIFIER_nondet_int(); [L114] int P30=__VERIFIER_nondet_int(); [L118] COND FALSE !(q == 0) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=1, P10=16, P11=15, P12=0, P13=0, P14=0, P15=17, P16=0, P17=1, P18=-13, P19=0, P2=0, P20=-14, P21=0, P22=0, P23=0, P24=0, P25=13, P26=0, P27=0, P28=0, P29=-17, P3=1, P30=-15, P4=1, P5=1, P6=0, P7=-16, P8=0, P9=18, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L138] COND FALSE !(q == 1) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=56, P1=1, P10=16, P11=15, P12=0, P13=0, P14=0, P15=17, P16=0, P17=1, P18=-13, P19=0, P2=0, P20=-14, P21=0, P22=0, P23=0, P24=0, P25=13, P26=0, P27=0, P28=0, P29=-17, P3=1, P30=-15, P4=1, P5=1, P6=0, P7=-16, P8=0, P9=18, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L750] COND TRUE q == 2 [L751] COND FALSE !(__VERIFIER_nondet_int()) [L767] COND FALSE !(__VERIFIER_nondet_int()) [L783] COND FALSE !(__VERIFIER_nondet_int()) [L799] COND FALSE !(__VERIFIER_nondet_int()) [L815] COND FALSE !(__VERIFIER_nondet_int()) [L831] COND FALSE !(__VERIFIER_nondet_int()) [L847] COND FALSE !(__VERIFIER_nondet_int()) [L863] COND FALSE !(__VERIFIER_nondet_int()) [L879] COND FALSE !(__VERIFIER_nondet_int()) [L895] COND FALSE !(__VERIFIER_nondet_int()) [L911] COND FALSE !(__VERIFIER_nondet_int()) [L927] COND FALSE !(__VERIFIER_nondet_int()) [L943] COND FALSE !(__VERIFIER_nondet_int()) [L959] COND FALSE !(__VERIFIER_nondet_int()) [L975] COND FALSE !(__VERIFIER_nondet_int()) [L991] COND FALSE !(__VERIFIER_nondet_int()) [L1007] COND FALSE !(__VERIFIER_nondet_int()) [L1023] COND FALSE !(__VERIFIER_nondet_int()) [L1039] COND FALSE !(__VERIFIER_nondet_int()) [L1055] COND FALSE !(__VERIFIER_nondet_int()) [L1071] COND FALSE !(__VERIFIER_nondet_int()) [L1087] COND FALSE !(__VERIFIER_nondet_int()) [L1103] COND FALSE !(__VERIFIER_nondet_int()) [L1119] COND FALSE !(__VERIFIER_nondet_int()) [L1135] COND FALSE !(__VERIFIER_nondet_int()) [L1151] COND FALSE !(__VERIFIER_nondet_int()) [L1167] COND FALSE !(__VERIFIER_nondet_int()) [L1183] COND FALSE !(__VERIFIER_nondet_int()) [L1199] COND FALSE !(__VERIFIER_nondet_int()) [L1215] COND FALSE !(__VERIFIER_nondet_int()) [L1231] COND FALSE !(__VERIFIER_nondet_int()) [L1247] COND FALSE !(__VERIFIER_nondet_int()) [L1263] COND FALSE !(__VERIFIER_nondet_int()) [L1279] COND FALSE !(__VERIFIER_nondet_int()) [L1295] COND FALSE !(__VERIFIER_nondet_int()) [L1311] COND FALSE !(__VERIFIER_nondet_int()) [L1327] COND FALSE !(__VERIFIER_nondet_int()) [L1343] COND FALSE !(__VERIFIER_nondet_int()) [L1359] COND FALSE !(__VERIFIER_nondet_int()) [L1375] COND FALSE !(__VERIFIER_nondet_int()) [L1391] COND FALSE !(__VERIFIER_nondet_int()) [L1407] COND FALSE !(__VERIFIER_nondet_int()) [L1423] COND FALSE !(__VERIFIER_nondet_int()) [L1439] COND FALSE !(__VERIFIER_nondet_int()) [L1455] COND FALSE !(__VERIFIER_nondet_int()) [L1471] COND FALSE !(__VERIFIER_nondet_int()) [L1487] COND FALSE !(__VERIFIER_nondet_int()) [L1503] COND FALSE !(__VERIFIER_nondet_int()) [L1519] COND FALSE !(__VERIFIER_nondet_int()) [L1535] COND FALSE !(__VERIFIER_nondet_int()) [L1551] COND FALSE !(__VERIFIER_nondet_int()) [L1567] COND FALSE !(__VERIFIER_nondet_int()) [L1583] COND FALSE !(__VERIFIER_nondet_int()) [L1599] COND FALSE !(__VERIFIER_nondet_int()) [L1615] COND FALSE !(__VERIFIER_nondet_int()) [L1631] COND FALSE !(__VERIFIER_nondet_int()) [L1647] COND FALSE !(__VERIFIER_nondet_int()) [L1663] COND FALSE !(__VERIFIER_nondet_int()) [L1679] COND FALSE !(__VERIFIER_nondet_int()) [L1695] COND FALSE !(__VERIFIER_nondet_int()) [L1711] COND FALSE !(__VERIFIER_nondet_int()) [L1727] COND FALSE !(__VERIFIER_nondet_int()) [L1743] COND FALSE !(__VERIFIER_nondet_int()) [L1759] COND FALSE !(__VERIFIER_nondet_int()) [L1775] COND FALSE !(__VERIFIER_nondet_int()) [L1791] COND FALSE !(__VERIFIER_nondet_int()) [L1807] COND FALSE !(__VERIFIER_nondet_int()) [L1823] COND FALSE !(__VERIFIER_nondet_int()) [L1839] COND FALSE !(__VERIFIER_nondet_int()) [L1855] COND FALSE !(__VERIFIER_nondet_int()) [L1871] COND FALSE !(__VERIFIER_nondet_int()) [L1887] COND FALSE !(__VERIFIER_nondet_int()) [L1903] COND FALSE !(__VERIFIER_nondet_int()) [L1919] COND FALSE !(__VERIFIER_nondet_int()) [L1935] COND FALSE !(__VERIFIER_nondet_int()) [L1951] COND FALSE !(__VERIFIER_nondet_int()) [L1967] COND FALSE !(__VERIFIER_nondet_int()) [L1983] COND FALSE !(__VERIFIER_nondet_int()) [L1999] COND FALSE !(__VERIFIER_nondet_int()) [L2015] COND FALSE !(__VERIFIER_nondet_int()) [L2031] COND FALSE !(__VERIFIER_nondet_int()) [L2047] COND FALSE !(__VERIFIER_nondet_int()) [L2063] COND TRUE __VERIFIER_nondet_int() [L2065] COND TRUE (P1 != 0) [L2067] method_id = 55 VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=16, P11=15, P12=0, P13=0, P14=0, P15=17, P16=0, P17=1, P18=-13, P19=0, P2=0, P20=-14, P21=0, P22=0, P23=0, P24=0, P25=13, P26=0, P27=0, P28=0, P29=-17, P3=1, P30=-15, P4=1, P5=1, P6=0, P7=-16, P8=0, P9=18, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L2069] COND TRUE ((this_factory != 0) && (P29 != 0)) VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=16, P11=15, P12=0, P13=0, P14=0, P15=17, P16=0, P17=1, P18=-13, P19=0, P2=0, P20=-14, P21=0, P22=0, P23=0, P24=0, P25=13, P26=0, P27=0, P28=0, P29=-17, P3=1, P30=-15, P4=1, P5=1, P6=0, P7=-16, P8=0, P9=18, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] [L49140] reach_error() VAL [m_bind=9, m_close=17, m_connect1_1=47, m_connect1_2=48, m_connect2_1=43, m_connect2_2=44, m_createImpl=24, m_getChannel=10, m_getImpl=12, m_getInetAddress=1, m_getInputStream=27, m_getKeepAlive=7, m_getLocalAddress=8, m_getLocalPort=3, m_getLocalSocketAddress=19, m_getOOBInline=2, m_getOutputStream=37, m_getPort=31, m_getReceiveBufferSize=20, m_getRemoteSocketAddress=40, m_getReuseAddress=23, m_getSendBufferSize=36, m_getSoLinger=11, m_getSoTimeout=14, m_getTcpNoDelay=13, m_getTrafficClass=22, m_isBound=34, m_isClosed=33, m_isConnected=6, m_isInputShutdown=4, m_isOutputShutdown=15, m_postAccept=16, m_sendUrgentData=32, m_setBound=35, m_setConnected=38, m_setCreated=25, m_setKeepAlive=26, m_setOOBInline=18, m_setPerformancePreferences=30, m_setReceiveBufferSize_1=41, m_setReceiveBufferSize_2=42, m_setReuseAddress=21, m_setSendBufferSize_1=53, m_setSendBufferSize_2=54, m_setSocketImplFactory_1=55, m_setSocketImplFactory_2=56, m_setSoLinger_1=45, m_setSoLinger_2=46, m_setSoTimeout_1=51, m_setSoTimeout_2=52, m_setTcpNoDelay=5, m_setTrafficClass_1=49, m_setTrafficClass_2=50, m_shutdownInput=29, m_shutdownOutput=28, m_Socket=39, method_id=55, P1=1, P10=16, P11=15, P12=0, P13=0, P14=0, P15=17, P16=0, P17=1, P18=-13, P19=0, P2=0, P20=-14, P21=0, P22=0, P23=0, P24=0, P25=13, P26=0, P27=0, P28=0, P29=-17, P3=1, P30=-15, P4=1, P5=1, P6=0, P7=-16, P8=0, P9=18, q=2, this_bound=0, this_closed=0, this_connected=0, this_created=0, this_factory=-9, this_impl=1, this_oldImpl=0, this_shutIn=0, this_shutOut=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.2s, OverallIterations: 30, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 61.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217807 SdHoareTripleChecker+Valid, 50.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217807 mSDsluCounter, 531014 SdHoareTripleChecker+Invalid, 43.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 202328 mSDsCounter, 21948 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60554 IncrementalHoareTripleChecker+Invalid, 82502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21948 mSolverCounterUnsat, 328686 mSDtfsCounter, 60554 mSolverCounterSat, 0.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71075occurred in iteration=15, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.2s AutomataMinimizationTime, 29 MinimizatonAttempts, 23966 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2410 NumberOfCodeBlocks, 2410 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 2194 ConstructedInterpolants, 0 QuantifiedInterpolants, 7013 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 291/291 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 09:05:26,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7558e9ab-0a9b-4f47-80e9-87f5ca2d7162/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE