./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.05.cil.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_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/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_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/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_949cfe21-2d27-4781-8b91-36eb30cde39f/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 d8722862ca37b1ee13dec8b9e420cd40ba7901837b8f3b6258499da6e8a2ca6f --- 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 01:32:58,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:32:58,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:32:58,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:32:58,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:32:58,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:32:58,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:32:58,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:32:58,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:32:58,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:32:58,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:32:58,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:32:58,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:32:58,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:32:58,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:32:58,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:32:58,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:32:58,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:32:58,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:32:58,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:32:58,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:32:58,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:32:58,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:32:58,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:32:58,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:32:58,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:32:58,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:32:58,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:32:58,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:32:58,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:32:58,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:32:58,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:32:58,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:32:58,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:32:58,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:32:58,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:32:58,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:32:58,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:32:58,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:32:58,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:32:58,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:32:58,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:32:58,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:32:58,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:32:58,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:32:58,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:32:58,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:32:58,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:32:58,743 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:32:58,744 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:32:58,744 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:32:58,744 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:32:58,745 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:32:58,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:32:58,746 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:32:58,746 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:32:58,746 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:32:58,746 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:32:58,747 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:32:58,747 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:32:58,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:32:58,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:32:58,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:32:58,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:32:58,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:32:58,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:32:58,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:32:58,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:32:58,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:32:58,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:32:58,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:32:58,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:32:58,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:32:58,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:32:58,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:32:58,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:32:58,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:32:58,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:32:58,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:32:58,753 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:32:58,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:32:58,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:32:58,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:32:58,755 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_949cfe21-2d27-4781-8b91-36eb30cde39f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8722862ca37b1ee13dec8b9e420cd40ba7901837b8f3b6258499da6e8a2ca6f [2022-11-22 01:32:59,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:32:59,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:32:59,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:32:59,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:32:59,144 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:32:59,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/systemc/transmitter.05.cil.c [2022-11-22 01:33:02,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:33:02,440 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:33:02,441 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/sv-benchmarks/c/systemc/transmitter.05.cil.c [2022-11-22 01:33:02,454 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/data/782ab487e/ed359b73685e4881b15386265cbb960d/FLAG73707e443 [2022-11-22 01:33:02,473 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/data/782ab487e/ed359b73685e4881b15386265cbb960d [2022-11-22 01:33:02,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:33:02,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:33:02,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:33:02,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:33:02,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:33:02,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3715549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02, skipping insertion in model container [2022-11-22 01:33:02,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:33:02,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:33:02,718 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_949cfe21-2d27-4781-8b91-36eb30cde39f/sv-benchmarks/c/systemc/transmitter.05.cil.c[706,719] [2022-11-22 01:33:02,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:33:02,847 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:33:02,859 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_949cfe21-2d27-4781-8b91-36eb30cde39f/sv-benchmarks/c/systemc/transmitter.05.cil.c[706,719] [2022-11-22 01:33:02,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:33:02,915 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:33:02,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02 WrapperNode [2022-11-22 01:33:02,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:33:02,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:33:02,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:33:02,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:33:02,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,968 INFO L138 Inliner]: procedures = 38, calls = 45, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 435 [2022-11-22 01:33:02,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:33:02,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:33:02,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:33:02,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:33:02,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:02,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:03,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:03,004 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:03,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:03,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:33:03,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:33:03,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:33:03,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:33:03,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (1/1) ... [2022-11-22 01:33:03,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:33:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:33:03,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:33:03,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:33:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:33:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-22 01:33:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-22 01:33:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-22 01:33:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-22 01:33:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-22 01:33:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-22 01:33:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-22 01:33:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-22 01:33:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-22 01:33:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-22 01:33:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:33:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-22 01:33:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-22 01:33:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:33:03,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:33:03,226 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:33:03,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:33:03,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:33:04,076 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:33:04,076 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 01:33:04,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:04 BoogieIcfgContainer [2022-11-22 01:33:04,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:33:04,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:33:04,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:33:04,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:33:04,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:33:02" (1/3) ... [2022-11-22 01:33:04,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd73769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:04, skipping insertion in model container [2022-11-22 01:33:04,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:33:02" (2/3) ... [2022-11-22 01:33:04,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd73769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:33:04, skipping insertion in model container [2022-11-22 01:33:04,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:33:04" (3/3) ... [2022-11-22 01:33:04,108 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.05.cil.c [2022-11-22 01:33:04,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:33:04,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:33:04,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:33:04,214 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;@568a7d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:33:04,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:33:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 83 states have (on average 1.5301204819277108) internal successors, (127), 85 states have internal predecessors, (127), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 01:33:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 01:33:04,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:04,232 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] [2022-11-22 01:33:04,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:04,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:04,242 INFO L85 PathProgramCache]: Analyzing trace with hash -980002035, now seen corresponding path program 1 times [2022-11-22 01:33:04,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:04,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445345377] [2022-11-22 01:33:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:04,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:04,739 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 01:33:04,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:04,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445345377] [2022-11-22 01:33:04,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445345377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:04,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:04,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:33:04,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802695863] [2022-11-22 01:33:04,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:33:04,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:33:04,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:33:04,797 INFO L87 Difference]: Start difference. First operand has 109 states, 83 states have (on average 1.5301204819277108) internal successors, (127), 85 states have internal predecessors, (127), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:05,231 INFO L93 Difference]: Finished difference Result 310 states and 477 transitions. [2022-11-22 01:33:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:33:05,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-11-22 01:33:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:05,251 INFO L225 Difference]: With dead ends: 310 [2022-11-22 01:33:05,251 INFO L226 Difference]: Without dead ends: 202 [2022-11-22 01:33:05,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:33:05,263 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 268 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:05,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 406 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:33:05,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-22 01:33:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-11-22 01:33:05,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 155 states have (on average 1.4451612903225806) internal successors, (224), 156 states have internal predecessors, (224), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-22 01:33:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 286 transitions. [2022-11-22 01:33:05,343 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 286 transitions. Word has length 49 [2022-11-22 01:33:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:05,343 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 286 transitions. [2022-11-22 01:33:05,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:05,344 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 286 transitions. [2022-11-22 01:33:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 01:33:05,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:05,347 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] [2022-11-22 01:33:05,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:33:05,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1936930418, now seen corresponding path program 1 times [2022-11-22 01:33:05,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:05,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797968807] [2022-11-22 01:33:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:05,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:05,539 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 01:33:05,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:05,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797968807] [2022-11-22 01:33:05,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797968807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:05,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:05,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:33:05,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642171038] [2022-11-22 01:33:05,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:05,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:33:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:05,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:33:05,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:33:05,545 INFO L87 Difference]: Start difference. First operand 199 states and 286 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:06,097 INFO L93 Difference]: Finished difference Result 671 states and 971 transitions. [2022-11-22 01:33:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:33:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-11-22 01:33:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:06,109 INFO L225 Difference]: With dead ends: 671 [2022-11-22 01:33:06,109 INFO L226 Difference]: Without dead ends: 458 [2022-11-22 01:33:06,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:33:06,113 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 528 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:06,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 650 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:33:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-22 01:33:06,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 446. [2022-11-22 01:33:06,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 357 states have (on average 1.4397759103641457) internal successors, (514), 354 states have internal predecessors, (514), 60 states have call successors, (60), 26 states have call predecessors, (60), 28 states have return successors, (66), 66 states have call predecessors, (66), 60 states have call successors, (66) [2022-11-22 01:33:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 640 transitions. [2022-11-22 01:33:06,163 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 640 transitions. Word has length 49 [2022-11-22 01:33:06,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:06,163 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 640 transitions. [2022-11-22 01:33:06,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 640 transitions. [2022-11-22 01:33:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 01:33:06,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:06,165 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] [2022-11-22 01:33:06,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:33:06,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash 781479119, now seen corresponding path program 1 times [2022-11-22 01:33:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:06,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250110394] [2022-11-22 01:33:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:06,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:33:06,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:06,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250110394] [2022-11-22 01:33:06,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250110394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:06,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:06,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:33:06,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311080947] [2022-11-22 01:33:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:06,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:33:06,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:06,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:33:06,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:33:06,311 INFO L87 Difference]: Start difference. First operand 446 states and 640 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:06,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:06,839 INFO L93 Difference]: Finished difference Result 1537 states and 2228 transitions. [2022-11-22 01:33:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:33:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-11-22 01:33:06,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:06,846 INFO L225 Difference]: With dead ends: 1537 [2022-11-22 01:33:06,846 INFO L226 Difference]: Without dead ends: 1061 [2022-11-22 01:33:06,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:33:06,849 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 528 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:06,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 532 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:33:06,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-22 01:33:06,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 833. [2022-11-22 01:33:06,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 668 states have (on average 1.437125748502994) internal successors, (960), 666 states have internal predecessors, (960), 108 states have call successors, (108), 50 states have call predecessors, (108), 56 states have return successors, (125), 117 states have call predecessors, (125), 108 states have call successors, (125) [2022-11-22 01:33:06,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1193 transitions. [2022-11-22 01:33:06,976 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1193 transitions. Word has length 49 [2022-11-22 01:33:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:06,978 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1193 transitions. [2022-11-22 01:33:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1193 transitions. [2022-11-22 01:33:06,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 01:33:06,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:06,986 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] [2022-11-22 01:33:06,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:33:06,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:06,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash 724334894, now seen corresponding path program 1 times [2022-11-22 01:33:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:06,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150183661] [2022-11-22 01:33:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:07,123 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 01:33:07,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150183661] [2022-11-22 01:33:07,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150183661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:07,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:07,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:33:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047239448] [2022-11-22 01:33:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:07,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:33:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:07,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:33:07,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:33:07,125 INFO L87 Difference]: Start difference. First operand 833 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:07,716 INFO L93 Difference]: Finished difference Result 2824 states and 4109 transitions. [2022-11-22 01:33:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:33:07,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-11-22 01:33:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:07,731 INFO L225 Difference]: With dead ends: 2824 [2022-11-22 01:33:07,731 INFO L226 Difference]: Without dead ends: 1930 [2022-11-22 01:33:07,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:33:07,739 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 530 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:07,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 533 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:33:07,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2022-11-22 01:33:07,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1589. [2022-11-22 01:33:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1268 states have (on average 1.4290220820189274) internal successors, (1812), 1270 states have internal predecessors, (1812), 208 states have call successors, (208), 98 states have call predecessors, (208), 112 states have return successors, (249), 221 states have call predecessors, (249), 208 states have call successors, (249) [2022-11-22 01:33:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2269 transitions. [2022-11-22 01:33:07,881 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2269 transitions. Word has length 49 [2022-11-22 01:33:07,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:07,882 INFO L495 AbstractCegarLoop]: Abstraction has 1589 states and 2269 transitions. [2022-11-22 01:33:07,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 01:33:07,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2269 transitions. [2022-11-22 01:33:07,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 01:33:07,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:07,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:07,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:33:07,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:07,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:07,886 INFO L85 PathProgramCache]: Analyzing trace with hash -590206767, now seen corresponding path program 1 times [2022-11-22 01:33:07,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:07,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758280398] [2022-11-22 01:33:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:33:08,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:08,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758280398] [2022-11-22 01:33:08,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758280398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:08,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:08,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:33:08,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309254469] [2022-11-22 01:33:08,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:08,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:33:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:33:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:08,170 INFO L87 Difference]: Start difference. First operand 1589 states and 2269 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:08,764 INFO L93 Difference]: Finished difference Result 4762 states and 6845 transitions. [2022-11-22 01:33:08,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:33:08,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2022-11-22 01:33:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:08,785 INFO L225 Difference]: With dead ends: 4762 [2022-11-22 01:33:08,786 INFO L226 Difference]: Without dead ends: 3179 [2022-11-22 01:33:08,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:33:08,799 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 489 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:08,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 448 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:33:08,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2022-11-22 01:33:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2635. [2022-11-22 01:33:09,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 2126 states have (on average 1.4153339604891815) internal successors, (3009), 2129 states have internal predecessors, (3009), 316 states have call successors, (316), 164 states have call predecessors, (316), 192 states have return successors, (398), 342 states have call predecessors, (398), 316 states have call successors, (398) [2022-11-22 01:33:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3723 transitions. [2022-11-22 01:33:09,076 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3723 transitions. Word has length 64 [2022-11-22 01:33:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:09,077 INFO L495 AbstractCegarLoop]: Abstraction has 2635 states and 3723 transitions. [2022-11-22 01:33:09,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3723 transitions. [2022-11-22 01:33:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 01:33:09,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:09,081 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:09,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:33:09,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:09,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1982902333, now seen corresponding path program 1 times [2022-11-22 01:33:09,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:09,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142427937] [2022-11-22 01:33:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:09,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:33:09,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:09,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142427937] [2022-11-22 01:33:09,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142427937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:09,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:09,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:33:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541439580] [2022-11-22 01:33:09,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:09,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:33:09,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:09,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:33:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:09,358 INFO L87 Difference]: Start difference. First operand 2635 states and 3723 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:10,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:10,180 INFO L93 Difference]: Finished difference Result 9255 states and 13148 transitions. [2022-11-22 01:33:10,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:33:10,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 66 [2022-11-22 01:33:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:10,219 INFO L225 Difference]: With dead ends: 9255 [2022-11-22 01:33:10,219 INFO L226 Difference]: Without dead ends: 6626 [2022-11-22 01:33:10,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:33:10,229 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 524 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:10,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 340 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:33:10,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6626 states. [2022-11-22 01:33:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6626 to 5108. [2022-11-22 01:33:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 4119 states have (on average 1.4039815489196408) internal successors, (5783), 4126 states have internal predecessors, (5783), 604 states have call successors, (604), 328 states have call predecessors, (604), 384 states have return successors, (754), 654 states have call predecessors, (754), 604 states have call successors, (754) [2022-11-22 01:33:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 7141 transitions. [2022-11-22 01:33:10,782 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 7141 transitions. Word has length 66 [2022-11-22 01:33:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:10,783 INFO L495 AbstractCegarLoop]: Abstraction has 5108 states and 7141 transitions. [2022-11-22 01:33:10,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 7141 transitions. [2022-11-22 01:33:10,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:33:10,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:10,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:10,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:33:10,787 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:10,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1200028401, now seen corresponding path program 1 times [2022-11-22 01:33:10,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:10,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923607554] [2022-11-22 01:33:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 01:33:11,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:11,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923607554] [2022-11-22 01:33:11,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923607554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:11,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:11,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:33:11,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067670763] [2022-11-22 01:33:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:11,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:33:11,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:33:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:11,074 INFO L87 Difference]: Start difference. First operand 5108 states and 7141 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:12,317 INFO L93 Difference]: Finished difference Result 14036 states and 19761 transitions. [2022-11-22 01:33:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:33:12,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2022-11-22 01:33:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:12,372 INFO L225 Difference]: With dead ends: 14036 [2022-11-22 01:33:12,373 INFO L226 Difference]: Without dead ends: 8934 [2022-11-22 01:33:12,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:33:12,388 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 434 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:12,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 443 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:33:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2022-11-22 01:33:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 7564. [2022-11-22 01:33:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7564 states, 6087 states have (on average 1.3936257598160013) internal successors, (8483), 6088 states have internal predecessors, (8483), 900 states have call successors, (900), 496 states have call predecessors, (900), 576 states have return successors, (1108), 980 states have call predecessors, (1108), 900 states have call successors, (1108) [2022-11-22 01:33:13,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 10491 transitions. [2022-11-22 01:33:13,368 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 10491 transitions. Word has length 68 [2022-11-22 01:33:13,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:13,369 INFO L495 AbstractCegarLoop]: Abstraction has 7564 states and 10491 transitions. [2022-11-22 01:33:13,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 10491 transitions. [2022-11-22 01:33:13,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 01:33:13,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:13,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:13,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:33:13,374 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1716226171, now seen corresponding path program 1 times [2022-11-22 01:33:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:13,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468692202] [2022-11-22 01:33:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:33:13,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:13,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468692202] [2022-11-22 01:33:13,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468692202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:13,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:13,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:33:13,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026187442] [2022-11-22 01:33:13,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:13,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:33:13,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:13,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:33:13,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:13,660 INFO L87 Difference]: Start difference. First operand 7564 states and 10491 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:15,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:15,345 INFO L93 Difference]: Finished difference Result 20318 states and 28385 transitions. [2022-11-22 01:33:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:33:15,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2022-11-22 01:33:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:15,430 INFO L225 Difference]: With dead ends: 20318 [2022-11-22 01:33:15,430 INFO L226 Difference]: Without dead ends: 12760 [2022-11-22 01:33:15,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:33:15,455 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 417 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:15,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 428 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:33:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12760 states. [2022-11-22 01:33:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12760 to 11254. [2022-11-22 01:33:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11254 states, 9043 states have (on average 1.382837553909101) internal successors, (12505), 9028 states have internal predecessors, (12505), 1346 states have call successors, (1346), 752 states have call predecessors, (1346), 864 states have return successors, (1630), 1474 states have call predecessors, (1630), 1346 states have call successors, (1630) [2022-11-22 01:33:16,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11254 states to 11254 states and 15481 transitions. [2022-11-22 01:33:16,794 INFO L78 Accepts]: Start accepts. Automaton has 11254 states and 15481 transitions. Word has length 70 [2022-11-22 01:33:16,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:16,795 INFO L495 AbstractCegarLoop]: Abstraction has 11254 states and 15481 transitions. [2022-11-22 01:33:16,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:16,796 INFO L276 IsEmpty]: Start isEmpty. Operand 11254 states and 15481 transitions. [2022-11-22 01:33:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 01:33:16,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:16,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:16,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:33:16,802 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash 569561777, now seen corresponding path program 1 times [2022-11-22 01:33:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:16,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129179173] [2022-11-22 01:33:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:16,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:33:17,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:17,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129179173] [2022-11-22 01:33:17,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129179173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:17,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:17,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:33:17,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470334292] [2022-11-22 01:33:17,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:17,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:33:17,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:17,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:33:17,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:17,053 INFO L87 Difference]: Start difference. First operand 11254 states and 15481 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:19,474 INFO L93 Difference]: Finished difference Result 35514 states and 49024 transitions. [2022-11-22 01:33:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:33:19,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2022-11-22 01:33:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:19,593 INFO L225 Difference]: With dead ends: 35514 [2022-11-22 01:33:19,593 INFO L226 Difference]: Without dead ends: 24266 [2022-11-22 01:33:19,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:33:19,631 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 413 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:19,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 329 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:33:19,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24266 states. [2022-11-22 01:33:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24266 to 21672. [2022-11-22 01:33:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21672 states, 17425 states have (on average 1.3698134863701579) internal successors, (23869), 17410 states have internal predecessors, (23869), 2556 states have call successors, (2556), 1480 states have call predecessors, (2556), 1690 states have return successors, (3054), 2782 states have call predecessors, (3054), 2556 states have call successors, (3054) [2022-11-22 01:33:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21672 states to 21672 states and 29479 transitions. [2022-11-22 01:33:22,661 INFO L78 Accepts]: Start accepts. Automaton has 21672 states and 29479 transitions. Word has length 72 [2022-11-22 01:33:22,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:22,662 INFO L495 AbstractCegarLoop]: Abstraction has 21672 states and 29479 transitions. [2022-11-22 01:33:22,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 01:33:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 21672 states and 29479 transitions. [2022-11-22 01:33:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:33:22,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:22,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:22,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:33:22,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash -978174771, now seen corresponding path program 1 times [2022-11-22 01:33:22,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:22,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835607617] [2022-11-22 01:33:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:33:22,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:22,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835607617] [2022-11-22 01:33:22,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835607617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:22,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:22,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818088962] [2022-11-22 01:33:22,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:22,740 INFO L87 Difference]: Start difference. First operand 21672 states and 29479 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:33:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:25,558 INFO L93 Difference]: Finished difference Result 41506 states and 57162 transitions. [2022-11-22 01:33:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 74 [2022-11-22 01:33:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:25,686 INFO L225 Difference]: With dead ends: 41506 [2022-11-22 01:33:25,687 INFO L226 Difference]: Without dead ends: 29368 [2022-11-22 01:33:25,719 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 01:33:25,720 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 91 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:25,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 351 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:33:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29368 states. [2022-11-22 01:33:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29368 to 23946. [2022-11-22 01:33:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23946 states, 19483 states have (on average 1.3828979109993327) internal successors, (26943), 19468 states have internal predecessors, (26943), 2664 states have call successors, (2664), 1588 states have call predecessors, (2664), 1798 states have return successors, (3162), 2890 states have call predecessors, (3162), 2664 states have call successors, (3162) [2022-11-22 01:33:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23946 states to 23946 states and 32769 transitions. [2022-11-22 01:33:28,167 INFO L78 Accepts]: Start accepts. Automaton has 23946 states and 32769 transitions. Word has length 74 [2022-11-22 01:33:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:28,168 INFO L495 AbstractCegarLoop]: Abstraction has 23946 states and 32769 transitions. [2022-11-22 01:33:28,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 01:33:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23946 states and 32769 transitions. [2022-11-22 01:33:28,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-22 01:33:28,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:28,179 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-22 01:33:28,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:33:28,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1461176118, now seen corresponding path program 1 times [2022-11-22 01:33:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:28,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111598836] [2022-11-22 01:33:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:28,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 01:33:28,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:28,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111598836] [2022-11-22 01:33:28,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111598836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:28,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:28,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9558200] [2022-11-22 01:33:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:28,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:28,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:28,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:28,246 INFO L87 Difference]: Start difference. First operand 23946 states and 32769 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:33:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:31,086 INFO L93 Difference]: Finished difference Result 41529 states and 57129 transitions. [2022-11-22 01:33:31,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:31,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2022-11-22 01:33:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:31,208 INFO L225 Difference]: With dead ends: 41529 [2022-11-22 01:33:31,208 INFO L226 Difference]: Without dead ends: 25612 [2022-11-22 01:33:31,250 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 01:33:31,251 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 118 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:31,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 261 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:33:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25612 states. [2022-11-22 01:33:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25612 to 23062. [2022-11-22 01:33:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23062 states, 18767 states have (on average 1.3742739915809665) internal successors, (25791), 18720 states have internal predecessors, (25791), 2640 states have call successors, (2640), 1580 states have call predecessors, (2640), 1654 states have return successors, (2810), 2762 states have call predecessors, (2810), 2640 states have call successors, (2810) [2022-11-22 01:33:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23062 states to 23062 states and 31241 transitions. [2022-11-22 01:33:33,587 INFO L78 Accepts]: Start accepts. Automaton has 23062 states and 31241 transitions. Word has length 83 [2022-11-22 01:33:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:33,587 INFO L495 AbstractCegarLoop]: Abstraction has 23062 states and 31241 transitions. [2022-11-22 01:33:33,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 01:33:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23062 states and 31241 transitions. [2022-11-22 01:33:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 01:33:33,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:33,611 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:33,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:33:33,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1385793060, now seen corresponding path program 1 times [2022-11-22 01:33:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558524088] [2022-11-22 01:33:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:33,678 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:33:33,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:33,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558524088] [2022-11-22 01:33:33,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558524088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:33,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:33:33,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:33:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102047910] [2022-11-22 01:33:33,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:33,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:33,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:33:33,681 INFO L87 Difference]: Start difference. First operand 23062 states and 31241 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-22 01:33:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:37,176 INFO L93 Difference]: Finished difference Result 57507 states and 78300 transitions. [2022-11-22 01:33:37,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:37,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2022-11-22 01:33:37,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:37,309 INFO L225 Difference]: With dead ends: 57507 [2022-11-22 01:33:37,309 INFO L226 Difference]: Without dead ends: 34450 [2022-11-22 01:33:37,355 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 01:33:37,355 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 115 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:37,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:33:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34450 states. [2022-11-22 01:33:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34450 to 34268. [2022-11-22 01:33:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34268 states, 27909 states have (on average 1.3596689240030098) internal successors, (37947), 27844 states have internal predecessors, (37947), 3892 states have call successors, (3892), 2358 states have call predecessors, (3892), 2466 states have return successors, (4134), 4066 states have call predecessors, (4134), 3892 states have call successors, (4134) [2022-11-22 01:33:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34268 states to 34268 states and 45973 transitions. [2022-11-22 01:33:40,693 INFO L78 Accepts]: Start accepts. Automaton has 34268 states and 45973 transitions. Word has length 103 [2022-11-22 01:33:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:33:40,694 INFO L495 AbstractCegarLoop]: Abstraction has 34268 states and 45973 transitions. [2022-11-22 01:33:40,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-22 01:33:40,694 INFO L276 IsEmpty]: Start isEmpty. Operand 34268 states and 45973 transitions. [2022-11-22 01:33:40,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 01:33:40,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:33:40,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:33:40,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:33:40,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:33:40,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:33:40,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1262328639, now seen corresponding path program 1 times [2022-11-22 01:33:40,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:33:40,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114639236] [2022-11-22 01:33:40,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:40,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:33:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:33:40,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114639236] [2022-11-22 01:33:40,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114639236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:33:40,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444804674] [2022-11-22 01:33:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:33:40,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:33:40,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:33:40,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:33:40,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949cfe21-2d27-4781-8b91-36eb30cde39f/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:33:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:33:41,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:33:41,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:33:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:33:41,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:33:41,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444804674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:33:41,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:33:41,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-22 01:33:41,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541872378] [2022-11-22 01:33:41,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:33:41,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:33:41,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:33:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:33:41,073 INFO L87 Difference]: Start difference. First operand 34268 states and 45973 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-22 01:33:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:33:45,069 INFO L93 Difference]: Finished difference Result 65562 states and 88933 transitions. [2022-11-22 01:33:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:33:45,070 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 105 [2022-11-22 01:33:45,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:33:45,213 INFO L225 Difference]: With dead ends: 65562 [2022-11-22 01:33:45,214 INFO L226 Difference]: Without dead ends: 42506 [2022-11-22 01:33:45,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 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 01:33:45,266 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 82 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:33:45,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 343 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:33:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42506 states.