./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba --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 40a5d6cfc2906fb78e842e2acc20834b9d9ef51616470f27f80518312cafa40b --- 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-b5237d8 [2022-11-22 00:22:33,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:22:33,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:22:34,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:22:34,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:22:34,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:22:34,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:22:34,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:22:34,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:22:34,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:22:34,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:22:34,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:22:34,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:22:34,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:22:34,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:22:34,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:22:34,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:22:34,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:22:34,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:22:34,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:22:34,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:22:34,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:22:34,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:22:34,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:22:34,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:22:34,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:22:34,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:22:34,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:22:34,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:22:34,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:22:34,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:22:34,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:22:34,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:22:34,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:22:34,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:22:34,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:22:34,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:22:34,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:22:34,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:22:34,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:22:34,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:22:34,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:22:34,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:22:34,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:22:34,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:22:34,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:22:34,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:22:34,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:22:34,146 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:22:34,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:22:34,147 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:22:34,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:22:34,148 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:22:34,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:22:34,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:22:34,149 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:22:34,149 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:22:34,149 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:22:34,150 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:22:34,150 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:22:34,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:22:34,151 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:22:34,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:22:34,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:22:34,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:22:34,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:22:34,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:22:34,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:22:34,153 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:22:34,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:22:34,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:22:34,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:22:34,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:22:34,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:22:34,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:22:34,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:22:34,156 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:22:34,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:22:34,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:22:34,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:22:34,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:22:34,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:22:34,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:22:34,158 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_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40a5d6cfc2906fb78e842e2acc20834b9d9ef51616470f27f80518312cafa40b [2022-11-22 00:22:34,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:22:34,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:22:34,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:22:34,514 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:22:34,515 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:22:34,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2022-11-22 00:22:37,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:22:37,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:22:37,931 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2022-11-22 00:22:37,943 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/data/cb72f7951/f6553d7ed5b749c4b207eb9ed5c27d91/FLAG1fdb9d28d [2022-11-22 00:22:37,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/data/cb72f7951/f6553d7ed5b749c4b207eb9ed5c27d91 [2022-11-22 00:22:37,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:22:37,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:22:37,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:22:37,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:22:37,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:22:37,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:37" (1/1) ... [2022-11-22 00:22:37,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290eb3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:37, skipping insertion in model container [2022-11-22 00:22:37,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:37" (1/1) ... [2022-11-22 00:22:37,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:22:38,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:22:38,521 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_ab244ac5-4615-45b2-a322-9cb67b30b9c5/sv-benchmarks/c/eca-rers2012/Problem02_label41.c[15650,15663] [2022-11-22 00:22:38,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:22:38,596 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:22:38,704 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_ab244ac5-4615-45b2-a322-9cb67b30b9c5/sv-benchmarks/c/eca-rers2012/Problem02_label41.c[15650,15663] [2022-11-22 00:22:38,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:22:38,747 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:22:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38 WrapperNode [2022-11-22 00:22:38,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:22:38,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:22:38,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:22:38,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:22:38,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,844 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-22 00:22:38,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:22:38,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:22:38,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:22:38,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:22:38,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:22:38,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:22:38,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:22:38,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:22:38,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (1/1) ... [2022-11-22 00:22:38,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:22:38,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:38,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:22:38,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:22:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:22:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:22:39,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:22:39,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:22:39,108 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:22:39,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:22:40,196 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:22:40,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:22:40,483 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:22:40,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:40 BoogieIcfgContainer [2022-11-22 00:22:40,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:22:40,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:22:40,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:22:40,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:22:40,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:22:37" (1/3) ... [2022-11-22 00:22:40,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4edeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:40, skipping insertion in model container [2022-11-22 00:22:40,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:38" (2/3) ... [2022-11-22 00:22:40,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4edeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:40, skipping insertion in model container [2022-11-22 00:22:40,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:40" (3/3) ... [2022-11-22 00:22:40,498 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2022-11-22 00:22:40,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:22:40,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:22:40,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:22:40,585 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;@313ab23a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:22:40,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:22:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 00:22:40,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:40,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:40,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:40,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1814570964, now seen corresponding path program 1 times [2022-11-22 00:22:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831253056] [2022-11-22 00:22:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:41,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831253056] [2022-11-22 00:22:41,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831253056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:41,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:41,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:22:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93598975] [2022-11-22 00:22:41,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:41,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:41,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:41,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:41,136 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:41,579 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2022-11-22 00:22:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:41,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 00:22:41,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:41,592 INFO L225 Difference]: With dead ends: 251 [2022-11-22 00:22:41,592 INFO L226 Difference]: Without dead ends: 163 [2022-11-22 00:22:41,595 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 [2022-11-22 00:22:41,598 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 47 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:41,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 23 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-22 00:22:41,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-22 00:22:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.8395061728395061) internal successors, (298), 162 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2022-11-22 00:22:41,649 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2022-11-22 00:22:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:41,650 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2022-11-22 00:22:41,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2022-11-22 00:22:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 00:22:41,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:41,653 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 00:22:41,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:22:41,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash 625143625, now seen corresponding path program 1 times [2022-11-22 00:22:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:41,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234485608] [2022-11-22 00:22:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:42,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:42,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234485608] [2022-11-22 00:22:42,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234485608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:42,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:42,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:22:42,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054228830] [2022-11-22 00:22:42,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:42,102 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:42,577 INFO L93 Difference]: Finished difference Result 485 states and 891 transitions. [2022-11-22 00:22:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:42,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-11-22 00:22:42,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:42,580 INFO L225 Difference]: With dead ends: 485 [2022-11-22 00:22:42,580 INFO L226 Difference]: Without dead ends: 323 [2022-11-22 00:22:42,581 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 [2022-11-22 00:22:42,587 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:42,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 66 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-11-22 00:22:42,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-11-22 00:22:42,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.5) internal successors, (483), 322 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:42,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 483 transitions. [2022-11-22 00:22:42,623 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 483 transitions. Word has length 84 [2022-11-22 00:22:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:42,624 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 483 transitions. [2022-11-22 00:22:42,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 483 transitions. [2022-11-22 00:22:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 00:22:42,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:42,630 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 00:22:42,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:22:42,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:42,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:42,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1659819540, now seen corresponding path program 1 times [2022-11-22 00:22:42,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:42,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607674798] [2022-11-22 00:22:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:42,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:42,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:42,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607674798] [2022-11-22 00:22:42,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607674798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:42,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:42,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139194361] [2022-11-22 00:22:42,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:42,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:42,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:42,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:42,860 INFO L87 Difference]: Start difference. First operand 323 states and 483 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2022-11-22 00:22:43,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:43,307 INFO L93 Difference]: Finished difference Result 805 states and 1261 transitions. [2022-11-22 00:22:43,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:43,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 [2022-11-22 00:22:43,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:43,312 INFO L225 Difference]: With dead ends: 805 [2022-11-22 00:22:43,312 INFO L226 Difference]: Without dead ends: 483 [2022-11-22 00:22:43,321 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 [2022-11-22 00:22:43,324 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:43,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-22 00:22:43,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-11-22 00:22:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.396265560165975) internal successors, (673), 482 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 673 transitions. [2022-11-22 00:22:43,362 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 673 transitions. Word has length 89 [2022-11-22 00:22:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:43,362 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 673 transitions. [2022-11-22 00:22:43,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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) [2022-11-22 00:22:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 673 transitions. [2022-11-22 00:22:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 00:22:43,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:43,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:43,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:22:43,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:43,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1696179864, now seen corresponding path program 1 times [2022-11-22 00:22:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:43,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310966053] [2022-11-22 00:22:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:43,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:43,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310966053] [2022-11-22 00:22:43,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310966053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:43,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:43,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:22:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308277220] [2022-11-22 00:22:43,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:43,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:43,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:43,464 INFO L87 Difference]: Start difference. First operand 483 states and 673 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:43,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:43,826 INFO L93 Difference]: Finished difference Result 1285 states and 1831 transitions. [2022-11-22 00:22:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:43,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-11-22 00:22:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:43,829 INFO L225 Difference]: With dead ends: 1285 [2022-11-22 00:22:43,830 INFO L226 Difference]: Without dead ends: 803 [2022-11-22 00:22:43,830 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 [2022-11-22 00:22:43,831 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 111 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:43,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 28 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-11-22 00:22:43,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 803. [2022-11-22 00:22:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 802 states have (on average 1.35785536159601) internal successors, (1089), 802 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1089 transitions. [2022-11-22 00:22:43,851 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1089 transitions. Word has length 90 [2022-11-22 00:22:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:43,852 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1089 transitions. [2022-11-22 00:22:43,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1089 transitions. [2022-11-22 00:22:43,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-22 00:22:43,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:43,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:43,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:22:43,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:43,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -80530762, now seen corresponding path program 1 times [2022-11-22 00:22:43,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:43,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611258339] [2022-11-22 00:22:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:43,985 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:43,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:43,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611258339] [2022-11-22 00:22:43,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611258339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:43,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:43,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:43,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023299935] [2022-11-22 00:22:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:43,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:43,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:43,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:43,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:43,988 INFO L87 Difference]: Start difference. First operand 803 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:44,360 INFO L93 Difference]: Finished difference Result 1925 states and 2603 transitions. [2022-11-22 00:22:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-22 00:22:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:44,364 INFO L225 Difference]: With dead ends: 1925 [2022-11-22 00:22:44,365 INFO L226 Difference]: Without dead ends: 1123 [2022-11-22 00:22:44,366 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 [2022-11-22 00:22:44,366 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:44,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 147 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:44,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-11-22 00:22:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-11-22 00:22:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.2780748663101604) internal successors, (1434), 1122 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1434 transitions. [2022-11-22 00:22:44,396 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1434 transitions. Word has length 93 [2022-11-22 00:22:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:44,397 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1434 transitions. [2022-11-22 00:22:44,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1434 transitions. [2022-11-22 00:22:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 00:22:44,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:44,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:44,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:22:44,408 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1105143259, now seen corresponding path program 1 times [2022-11-22 00:22:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:44,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376852836] [2022-11-22 00:22:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:44,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:44,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376852836] [2022-11-22 00:22:44,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376852836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:44,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:44,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:44,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589400900] [2022-11-22 00:22:44,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:44,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:44,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:44,565 INFO L87 Difference]: Start difference. First operand 1123 states and 1434 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:44,885 INFO L93 Difference]: Finished difference Result 2245 states and 2867 transitions. [2022-11-22 00:22:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:44,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 00:22:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:44,889 INFO L225 Difference]: With dead ends: 2245 [2022-11-22 00:22:44,890 INFO L226 Difference]: Without dead ends: 1123 [2022-11-22 00:22:44,891 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 [2022-11-22 00:22:44,892 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 79 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:44,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 16 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:44,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-11-22 00:22:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-11-22 00:22:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.2290552584670231) internal successors, (1379), 1122 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1379 transitions. [2022-11-22 00:22:44,916 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1379 transitions. Word has length 109 [2022-11-22 00:22:44,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:44,917 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1379 transitions. [2022-11-22 00:22:44,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1379 transitions. [2022-11-22 00:22:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 00:22:44,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:44,920 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:44,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:22:44,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:44,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1872796143, now seen corresponding path program 1 times [2022-11-22 00:22:44,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:44,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920999281] [2022-11-22 00:22:44,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:45,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920999281] [2022-11-22 00:22:45,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920999281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391402407] [2022-11-22 00:22:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:45,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:45,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:45,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:45,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:22:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:45,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:22:45,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 00:22:45,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:22:45,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391402407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:45,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:22:45,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-22 00:22:45,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740830102] [2022-11-22 00:22:45,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:45,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:45,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:45,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:45,547 INFO L87 Difference]: Start difference. First operand 1123 states and 1379 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:45,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:45,947 INFO L93 Difference]: Finished difference Result 2405 states and 3033 transitions. [2022-11-22 00:22:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:45,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-11-22 00:22:45,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:45,954 INFO L225 Difference]: With dead ends: 2405 [2022-11-22 00:22:45,954 INFO L226 Difference]: Without dead ends: 1283 [2022-11-22 00:22:45,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:45,956 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:45,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 131 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-22 00:22:45,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2022-11-22 00:22:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1282 states have (on average 1.2316692667706708) internal successors, (1579), 1282 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1579 transitions. [2022-11-22 00:22:45,981 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1579 transitions. Word has length 113 [2022-11-22 00:22:45,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:45,983 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1579 transitions. [2022-11-22 00:22:45,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1579 transitions. [2022-11-22 00:22:45,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 00:22:45,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:45,988 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:46,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 00:22:46,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1413206854, now seen corresponding path program 1 times [2022-11-22 00:22:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746089075] [2022-11-22 00:22:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:46,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:22:46,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:46,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746089075] [2022-11-22 00:22:46,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746089075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:46,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:46,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:46,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727859977] [2022-11-22 00:22:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:46,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:46,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:46,528 INFO L87 Difference]: Start difference. First operand 1283 states and 1579 transitions. Second operand has 4 states, 4 states have (on average 28.0) 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) [2022-11-22 00:22:47,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:47,112 INFO L93 Difference]: Finished difference Result 3043 states and 3761 transitions. [2022-11-22 00:22:47,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:22:47,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) 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 114 [2022-11-22 00:22:47,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:47,118 INFO L225 Difference]: With dead ends: 3043 [2022-11-22 00:22:47,119 INFO L226 Difference]: Without dead ends: 1683 [2022-11-22 00:22:47,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:47,124 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 79 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:47,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 46 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 00:22:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-11-22 00:22:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1363. [2022-11-22 00:22:47,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 1.2305433186490455) internal successors, (1676), 1362 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1676 transitions. [2022-11-22 00:22:47,155 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1676 transitions. Word has length 114 [2022-11-22 00:22:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:47,156 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 1676 transitions. [2022-11-22 00:22:47,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) 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) [2022-11-22 00:22:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1676 transitions. [2022-11-22 00:22:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-22 00:22:47,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:47,159 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:47,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:22:47,160 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:47,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:47,160 INFO L85 PathProgramCache]: Analyzing trace with hash -857792788, now seen corresponding path program 1 times [2022-11-22 00:22:47,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:47,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592875461] [2022-11-22 00:22:47,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:47,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-22 00:22:47,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:47,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592875461] [2022-11-22 00:22:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592875461] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:47,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27238441] [2022-11-22 00:22:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:47,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:47,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:47,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:47,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:22:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:47,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:22:47,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 00:22:47,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:22:47,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27238441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:47,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:22:47,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-22 00:22:47,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184545253] [2022-11-22 00:22:47,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:47,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:47,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:47,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:47,684 INFO L87 Difference]: Start difference. First operand 1363 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:48,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:48,052 INFO L93 Difference]: Finished difference Result 3125 states and 3912 transitions. [2022-11-22 00:22:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:48,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 127 [2022-11-22 00:22:48,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:48,060 INFO L225 Difference]: With dead ends: 3125 [2022-11-22 00:22:48,060 INFO L226 Difference]: Without dead ends: 1763 [2022-11-22 00:22:48,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:48,064 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 67 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:48,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 61 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:48,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2022-11-22 00:22:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1683. [2022-11-22 00:22:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.2045184304399525) internal successors, (2026), 1682 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2026 transitions. [2022-11-22 00:22:48,104 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2026 transitions. Word has length 127 [2022-11-22 00:22:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:48,104 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 2026 transitions. [2022-11-22 00:22:48,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:48,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2026 transitions. [2022-11-22 00:22:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-22 00:22:48,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:48,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 00:22:48,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:48,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:48,314 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1320242758, now seen corresponding path program 1 times [2022-11-22 00:22:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:48,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229352572] [2022-11-22 00:22:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 00:22:48,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:48,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229352572] [2022-11-22 00:22:48,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229352572] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:48,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329930330] [2022-11-22 00:22:48,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:48,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:48,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:48,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:48,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:22:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:48,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:22:48,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-22 00:22:48,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:22:48,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329930330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:48,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:22:48,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-22 00:22:48,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957535551] [2022-11-22 00:22:48,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:48,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:48,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:48,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:48,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:48,952 INFO L87 Difference]: Start difference. First operand 1683 states and 2026 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:49,331 INFO L93 Difference]: Finished difference Result 3845 states and 4740 transitions. [2022-11-22 00:22:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:49,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 140 [2022-11-22 00:22:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:49,338 INFO L225 Difference]: With dead ends: 3845 [2022-11-22 00:22:49,339 INFO L226 Difference]: Without dead ends: 1843 [2022-11-22 00:22:49,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:49,344 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:49,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 132 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2022-11-22 00:22:49,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1683. [2022-11-22 00:22:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.1569560047562426) internal successors, (1946), 1682 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:49,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1946 transitions. [2022-11-22 00:22:49,383 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1946 transitions. Word has length 140 [2022-11-22 00:22:49,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:49,383 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 1946 transitions. [2022-11-22 00:22:49,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1946 transitions. [2022-11-22 00:22:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-22 00:22:49,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:49,387 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:49,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:49,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 00:22:49,594 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:49,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:49,594 INFO L85 PathProgramCache]: Analyzing trace with hash 154780592, now seen corresponding path program 1 times [2022-11-22 00:22:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:49,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900628545] [2022-11-22 00:22:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 77 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-22 00:22:49,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:49,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900628545] [2022-11-22 00:22:49,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900628545] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:49,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286604927] [2022-11-22 00:22:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:49,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:49,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:49,939 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:49,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:22:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:50,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:22:50,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-22 00:22:50,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:22:50,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286604927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:50,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:22:50,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-22 00:22:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172336447] [2022-11-22 00:22:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:50,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:50,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:50,120 INFO L87 Difference]: Start difference. First operand 1683 states and 1946 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:50,420 INFO L93 Difference]: Finished difference Result 3925 states and 4599 transitions. [2022-11-22 00:22:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:50,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-11-22 00:22:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:50,428 INFO L225 Difference]: With dead ends: 3925 [2022-11-22 00:22:50,429 INFO L226 Difference]: Without dead ends: 2083 [2022-11-22 00:22:50,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:50,431 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 67 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:50,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 138 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-11-22 00:22:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1923. [2022-11-22 00:22:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1922 states have (on average 1.163891779396462) internal successors, (2237), 1922 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2237 transitions. [2022-11-22 00:22:50,484 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2237 transitions. Word has length 142 [2022-11-22 00:22:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 2237 transitions. [2022-11-22 00:22:50,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2237 transitions. [2022-11-22 00:22:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-22 00:22:50,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:50,488 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:50,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:50,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:50,694 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash -365682564, now seen corresponding path program 1 times [2022-11-22 00:22:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:50,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588278491] [2022-11-22 00:22:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:50,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 65 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:22:51,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:51,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588278491] [2022-11-22 00:22:51,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588278491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:22:51,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254963593] [2022-11-22 00:22:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:51,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:51,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:22:51,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:22:51,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:22:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:51,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:22:51,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:22:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 00:22:51,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:22:51,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254963593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:51,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:22:51,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-22 00:22:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027207917] [2022-11-22 00:22:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:51,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:51,333 INFO L87 Difference]: Start difference. First operand 1923 states and 2237 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:51,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:51,620 INFO L93 Difference]: Finished difference Result 3925 states and 4556 transitions. [2022-11-22 00:22:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:51,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 154 [2022-11-22 00:22:51,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:51,626 INFO L225 Difference]: With dead ends: 3925 [2022-11-22 00:22:51,627 INFO L226 Difference]: Without dead ends: 2003 [2022-11-22 00:22:51,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:22:51,629 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:51,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2022-11-22 00:22:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1923. [2022-11-22 00:22:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1922 states have (on average 1.1436004162330906) internal successors, (2198), 1922 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2198 transitions. [2022-11-22 00:22:51,673 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2198 transitions. Word has length 154 [2022-11-22 00:22:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:51,674 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 2198 transitions. [2022-11-22 00:22:51,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2198 transitions. [2022-11-22 00:22:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-22 00:22:51,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:51,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:51,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:22:51,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:22:51,886 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:51,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:51,886 INFO L85 PathProgramCache]: Analyzing trace with hash 538047737, now seen corresponding path program 1 times [2022-11-22 00:22:51,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:51,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71749991] [2022-11-22 00:22:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:51,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 00:22:52,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71749991] [2022-11-22 00:22:52,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71749991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:52,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:52,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:52,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894356178] [2022-11-22 00:22:52,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:52,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:52,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:52,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:52,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:52,059 INFO L87 Difference]: Start difference. First operand 1923 states and 2198 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:52,422 INFO L93 Difference]: Finished difference Result 4405 states and 5064 transitions. [2022-11-22 00:22:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 184 [2022-11-22 00:22:52,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:52,431 INFO L225 Difference]: With dead ends: 4405 [2022-11-22 00:22:52,431 INFO L226 Difference]: Without dead ends: 2483 [2022-11-22 00:22:52,433 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 [2022-11-22 00:22:52,434 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 58 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:52,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 112 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2022-11-22 00:22:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2003. [2022-11-22 00:22:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 2002 states have (on average 1.1423576423576423) internal successors, (2287), 2002 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2287 transitions. [2022-11-22 00:22:52,481 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2287 transitions. Word has length 184 [2022-11-22 00:22:52,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:52,482 INFO L495 AbstractCegarLoop]: Abstraction has 2003 states and 2287 transitions. [2022-11-22 00:22:52,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2287 transitions. [2022-11-22 00:22:52,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-22 00:22:52,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:52,487 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:52,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 00:22:52,488 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:52,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash 472149574, now seen corresponding path program 1 times [2022-11-22 00:22:52,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:52,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366814488] [2022-11-22 00:22:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:52,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 00:22:52,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:52,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366814488] [2022-11-22 00:22:52,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366814488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:52,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:52,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142521596] [2022-11-22 00:22:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:52,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:52,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:52,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:52,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:52,602 INFO L87 Difference]: Start difference. First operand 2003 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:52,943 INFO L93 Difference]: Finished difference Result 4325 states and 4914 transitions. [2022-11-22 00:22:52,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 192 [2022-11-22 00:22:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:52,949 INFO L225 Difference]: With dead ends: 4325 [2022-11-22 00:22:52,950 INFO L226 Difference]: Without dead ends: 1763 [2022-11-22 00:22:52,952 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 [2022-11-22 00:22:52,953 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 69 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:52,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 123 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:22:52,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2022-11-22 00:22:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1683. [2022-11-22 00:22:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.0992865636147444) internal successors, (1849), 1682 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:53,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1849 transitions. [2022-11-22 00:22:53,002 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1849 transitions. Word has length 192 [2022-11-22 00:22:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:53,002 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 1849 transitions. [2022-11-22 00:22:53,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1849 transitions. [2022-11-22 00:22:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-22 00:22:53,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:53,010 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-22 00:22:53,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:22:53,010 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:53,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash -628940069, now seen corresponding path program 1 times [2022-11-22 00:22:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:53,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412739910] [2022-11-22 00:22:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-22 00:22:53,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:53,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412739910] [2022-11-22 00:22:53,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412739910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:53,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:53,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:22:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601701275] [2022-11-22 00:22:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:53,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:22:53,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:53,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:22:53,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:22:53,402 INFO L87 Difference]: Start difference. First operand 1683 states and 1849 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:53,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:53,789 INFO L93 Difference]: Finished difference Result 3525 states and 3863 transitions. [2022-11-22 00:22:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:53,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 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 271 [2022-11-22 00:22:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:53,794 INFO L225 Difference]: With dead ends: 3525 [2022-11-22 00:22:53,807 INFO L226 Difference]: Without dead ends: 1683 [2022-11-22 00:22:53,809 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 [2022-11-22 00:22:53,809 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 56 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:53,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 119 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:22:53,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-11-22 00:22:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1523. [2022-11-22 00:22:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 1.0913272010512483) internal successors, (1661), 1522 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:53,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1661 transitions. [2022-11-22 00:22:53,875 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1661 transitions. Word has length 271 [2022-11-22 00:22:53,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:53,875 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1661 transitions. [2022-11-22 00:22:53,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1661 transitions. [2022-11-22 00:22:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-22 00:22:53,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:22:53,882 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:53,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 00:22:53,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:22:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:22:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1422974540, now seen corresponding path program 1 times [2022-11-22 00:22:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:22:53,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153109349] [2022-11-22 00:22:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:22:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:22:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:22:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-22 00:22:54,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:22:54,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153109349] [2022-11-22 00:22:54,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153109349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:22:54,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:22:54,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:22:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123737974] [2022-11-22 00:22:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:22:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:22:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:22:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:22:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:22:54,082 INFO L87 Difference]: Start difference. First operand 1523 states and 1661 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:22:54,330 INFO L93 Difference]: Finished difference Result 2723 states and 2980 transitions. [2022-11-22 00:22:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:22:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 321 [2022-11-22 00:22:54,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:22:54,335 INFO L225 Difference]: With dead ends: 2723 [2022-11-22 00:22:54,335 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:22:54,337 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 [2022-11-22 00:22:54,337 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 42 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:22:54,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 92 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:22:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:22:54,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:22:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:22:54,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 321 [2022-11-22 00:22:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:22:54,340 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:22:54,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:22:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:22:54,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:22:54,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:22:54,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 00:22:54,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:22:55,686 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-22 00:22:55,687 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-22 00:22:55,688 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-22 00:22:55,689 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-22 00:22:55,690 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-22 00:22:55,691 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-22 00:22:55,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 452) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-22 00:22:55,693 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-22 00:22:55,694 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-22 00:22:55,695 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-22 00:22:55,695 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-22 00:22:55,695 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-22 00:22:55,701 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse4 (= ~a19~0 1))) (let ((.cse7 (not .cse4)) (.cse6 (= ~a11~0 1)) (.cse11 (<= ~a19~0 0)) (.cse5 (= ~a11~0 0)) (.cse2 (= ~a25~0 1)) (.cse10 (<= ~a28~0 7)) (.cse0 (= ~a17~0 8)) (.cse1 (<= 9 ~a28~0)) (.cse3 (= ~a21~0 1)) (.cse8 (<= ~a28~0 10)) (.cse9 (<= ~a25~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse5 .cse4) (and .cse1 .cse2 .cse6 .cse7 .cse8) (and .cse2 .cse5 .cse8) (and .cse1 .cse5 .cse8 .cse4 .cse9) (and .cse6 .cse10 .cse9) (and (<= 10 ~a28~0) .cse8 (not .cse2) .cse4) (and .cse5 .cse10 .cse11) (and .cse7 .cse8 .cse9) (and (<= 11 ~a28~0) .cse6 .cse4 .cse9) (and .cse5 .cse9 .cse11) (and .cse5 .cse8 .cse4 .cse10 .cse9) (and .cse2 .cse10) (and .cse0 .cse1 .cse3 .cse8 .cse9)))) [2022-11-22 00:22:55,701 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-22 00:22:55,701 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-22 00:22:55,701 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-22 00:22:55,701 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-22 00:22:55,702 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-22 00:22:55,702 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-22 00:22:55,703 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-22 00:22:55,703 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-22 00:22:55,703 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:22:55,703 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-22 00:22:55,703 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-22 00:22:55,704 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse4 (= ~a19~0 1))) (let ((.cse7 (not .cse4)) (.cse6 (= ~a11~0 1)) (.cse11 (<= ~a19~0 0)) (.cse5 (= ~a11~0 0)) (.cse2 (= ~a25~0 1)) (.cse10 (<= ~a28~0 7)) (.cse0 (= ~a17~0 8)) (.cse1 (<= 9 ~a28~0)) (.cse3 (= ~a21~0 1)) (.cse8 (<= ~a28~0 10)) (.cse9 (<= ~a25~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse5 .cse4) (and .cse1 .cse2 .cse6 .cse7 .cse8) (and .cse2 .cse5 .cse8) (and .cse1 .cse5 .cse8 .cse4 .cse9) (and .cse6 .cse10 .cse9) (and (<= 10 ~a28~0) .cse8 (not .cse2) .cse4) (and .cse5 .cse10 .cse11) (and .cse7 .cse8 .cse9) (and (<= 11 ~a28~0) .cse6 .cse4 .cse9) (and .cse5 .cse9 .cse11) (and .cse5 .cse8 .cse4 .cse10 .cse9) (and .cse2 .cse10) (and .cse0 .cse1 .cse3 .cse8 .cse9)))) [2022-11-22 00:22:55,711 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-22 00:22:55,712 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-22 00:22:55,713 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-22 00:22:55,713 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-22 00:22:55,713 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-22 00:22:55,713 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-22 00:22:55,716 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-22 00:22:55,717 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-22 00:22:55,717 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-22 00:22:55,718 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-22 00:22:55,718 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-22 00:22:55,721 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:22:55,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:22:55,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:22:55 BoogieIcfgContainer [2022-11-22 00:22:55,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:22:55,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:22:55,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:22:55,748 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:22:55,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:40" (3/4) ... [2022-11-22 00:22:55,751 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:22:55,768 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-11-22 00:22:55,769 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-22 00:22:55,771 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-22 00:22:55,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:22:55,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:22:55,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:22:55,872 INFO L158 Benchmark]: Toolchain (without parser) took 17907.13ms. Allocated memory was 130.0MB in the beginning and 339.7MB in the end (delta: 209.7MB). Free memory was 78.1MB in the beginning and 174.6MB in the end (delta: -96.5MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,872 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 92.8MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:22:55,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.64ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 77.8MB in the beginning and 138.4MB in the end (delta: -60.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.60ms. Allocated memory is still 182.5MB. Free memory was 138.4MB in the beginning and 133.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,873 INFO L158 Benchmark]: Boogie Preprocessor took 100.99ms. Allocated memory is still 182.5MB. Free memory was 133.3MB in the beginning and 128.9MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,874 INFO L158 Benchmark]: RCFGBuilder took 1538.36ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 94.4MB in the end (delta: 34.5MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,874 INFO L158 Benchmark]: TraceAbstraction took 15257.05ms. Allocated memory was 182.5MB in the beginning and 339.7MB in the end (delta: 157.3MB). Free memory was 94.4MB in the beginning and 185.3MB in the end (delta: -91.0MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,874 INFO L158 Benchmark]: Witness Printer took 123.92ms. Allocated memory is still 339.7MB. Free memory was 185.3MB in the beginning and 174.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:22:55,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 92.8MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.64ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 77.8MB in the beginning and 138.4MB in the end (delta: -60.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.60ms. Allocated memory is still 182.5MB. Free memory was 138.4MB in the beginning and 133.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.99ms. Allocated memory is still 182.5MB. Free memory was 133.3MB in the beginning and 128.9MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1538.36ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 94.4MB in the end (delta: 34.5MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15257.05ms. Allocated memory was 182.5MB in the beginning and 339.7MB in the end (delta: 157.3MB). Free memory was 94.4MB in the beginning and 185.3MB in the end (delta: -91.0MB). Peak memory consumption was 151.2MB. Max. memory is 16.1GB. * Witness Printer took 123.92ms. Allocated memory is still 339.7MB. Free memory was 185.3MB in the beginning and 174.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. 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 - PositiveResult [Line: 452]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.2s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 940 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 940 mSDsluCounter, 1423 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 885 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3981 IncrementalHoareTripleChecker+Invalid, 4866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 885 mSolverCounterUnsat, 1328 mSDtfsCounter, 3981 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 722 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2003occurred in iteration=13, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 16 MinimizatonAttempts, 1520 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 355 HoareAnnotationTreeSize, 3 FomulaSimplifications, 260 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1930 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2979 NumberOfCodeBlocks, 2979 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2958 ConstructedInterpolants, 0 QuantifiedInterpolants, 10041 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1489 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 2339/2387 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((((((((a17 == 8 && 9 <= a28) && a25 == 1) && a21 == 1) && a19 == 1) || ((a25 == 1 && a11 == 0) && a19 == 1)) || ((((9 <= a28 && a25 == 1) && a11 == 1) && !(a19 == 1)) && a28 <= 10)) || ((a25 == 1 && a11 == 0) && a28 <= 10)) || ((((9 <= a28 && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((a11 == 1 && a28 <= 7) && a25 <= 0)) || (((10 <= a28 && a28 <= 10) && !(a25 == 1)) && a19 == 1)) || ((a11 == 0 && a28 <= 7) && a19 <= 0)) || ((!(a19 == 1) && a28 <= 10) && a25 <= 0)) || (((11 <= a28 && a11 == 1) && a19 == 1) && a25 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((a11 == 0 && a28 <= 10) && a19 == 1) && a28 <= 7) && a25 <= 0)) || (a25 == 1 && a28 <= 7)) || ((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a25 <= 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((((a17 == 8 && 9 <= a28) && a25 == 1) && a21 == 1) && a19 == 1) || ((a25 == 1 && a11 == 0) && a19 == 1)) || ((((9 <= a28 && a25 == 1) && a11 == 1) && !(a19 == 1)) && a28 <= 10)) || ((a25 == 1 && a11 == 0) && a28 <= 10)) || ((((9 <= a28 && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || ((a11 == 1 && a28 <= 7) && a25 <= 0)) || (((10 <= a28 && a28 <= 10) && !(a25 == 1)) && a19 == 1)) || ((a11 == 0 && a28 <= 7) && a19 <= 0)) || ((!(a19 == 1) && a28 <= 10) && a25 <= 0)) || (((11 <= a28 && a11 == 1) && a19 == 1) && a25 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || ((((a11 == 0 && a28 <= 10) && a19 == 1) && a28 <= 7) && a25 <= 0)) || (a25 == 1 && a28 <= 7)) || ((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a25 <= 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 00:22:55,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab244ac5-4615-45b2-a322-9cb67b30b9c5/bin/utaipan-g80aRyZoba/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 Result: TRUE