./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7 --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 f0996d70f204c5713a65b04e25037e48d7532ec1ba0c10162e12c5c0d518b4e3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:48:35,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:48:35,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:48:35,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:48:35,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:48:35,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:48:35,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:48:35,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:48:35,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:48:35,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:48:35,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:48:35,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:48:35,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:48:35,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:48:35,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:48:35,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:48:35,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:48:35,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:48:35,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:48:35,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:48:35,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:48:35,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:48:35,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:48:35,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:48:35,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:48:35,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:48:35,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:48:35,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:48:35,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:48:35,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:48:35,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:48:35,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:48:35,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:48:35,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:48:35,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:48:35,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:48:35,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:48:35,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:48:35,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:48:35,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:48:35,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:48:35,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:48:36,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:48:36,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:48:36,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:48:36,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:48:36,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:48:36,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:48:36,042 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:48:36,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:48:36,043 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:48:36,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:48:36,044 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:48:36,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:48:36,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:48:36,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:48:36,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:48:36,045 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:48:36,045 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:48:36,046 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:48:36,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:48:36,047 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:48:36,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:48:36,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:48:36,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:48:36,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:48:36,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:48:36,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:48:36,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:48:36,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:48:36,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:48:36,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:48:36,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:48:36,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:48:36,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:48:36,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:48:36,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:48:36,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:48:36,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:48:36,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:48:36,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:48:36,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:48:36,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:48:36,053 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0996d70f204c5713a65b04e25037e48d7532ec1ba0c10162e12c5c0d518b4e3 [2021-11-25 19:48:36,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:48:36,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:48:36,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:48:36,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:48:36,362 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:48:36,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c [2021-11-25 19:48:36,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/data/9d22851f5/f6e7cf7a6690448faaac5f8d2bd89f4d/FLAG475ae7977 [2021-11-25 19:48:37,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:48:37,219 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c [2021-11-25 19:48:37,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/data/9d22851f5/f6e7cf7a6690448faaac5f8d2bd89f4d/FLAG475ae7977 [2021-11-25 19:48:37,782 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/data/9d22851f5/f6e7cf7a6690448faaac5f8d2bd89f4d [2021-11-25 19:48:37,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:48:37,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:48:37,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:48:37,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:48:37,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:48:37,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:48:37" (1/1) ... [2021-11-25 19:48:37,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71932a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:37, skipping insertion in model container [2021-11-25 19:48:37,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:48:37" (1/1) ... [2021-11-25 19:48:37,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:48:37,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:48:38,613 WARN L230 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_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c[84645,84658] [2021-11-25 19:48:38,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:48:39,066 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:48:39,180 WARN L230 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_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/sv-benchmarks/c/ntdrivers/diskperf.i.cil-1.c[84645,84658] [2021-11-25 19:48:39,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:48:39,538 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:48:39,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39 WrapperNode [2021-11-25 19:48:39,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:48:39,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:48:39,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:48:39,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:48:39,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:39,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:39,838 INFO L137 Inliner]: procedures = 127, calls = 1459, calls flagged for inlining = 20, calls inlined = 18, statements flattened = 3749 [2021-11-25 19:48:39,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:48:39,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:48:39,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:48:39,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:48:39,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:39,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:39,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:39,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:40,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:40,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:40,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:40,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:48:40,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:48:40,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:48:40,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:48:40,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (1/1) ... [2021-11-25 19:48:40,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:48:40,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:48:40,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:48:40,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:48:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:48:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:48:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:48:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:48:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2021-11-25 19:48:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2021-11-25 19:48:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSendToNextDriver [2021-11-25 19:48:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSendToNextDriver [2021-11-25 19:48:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-11-25 19:48:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-11-25 19:48:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfAddCounters [2021-11-25 19:48:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfAddCounters [2021-11-25 19:48:40,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:48:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:48:40,348 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedDecrement [2021-11-25 19:48:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedDecrement [2021-11-25 19:48:40,348 INFO L130 BoogieDeclarations]: Found specification of procedure IoWMIRegistrationControl [2021-11-25 19:48:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWMIRegistrationControl [2021-11-25 19:48:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:48:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-11-25 19:48:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-11-25 19:48:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:48:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:48:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-11-25 19:48:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-11-25 19:48:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:48:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:48:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure KeQuerySystemTime [2021-11-25 19:48:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQuerySystemTime [2021-11-25 19:48:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:48:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:48:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-11-25 19:48:40,353 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-11-25 19:48:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:48:40,353 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2021-11-25 19:48:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2021-11-25 19:48:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:48:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfLogError [2021-11-25 19:48:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfLogError [2021-11-25 19:48:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:48:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryPerformanceCounter [2021-11-25 19:48:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryPerformanceCounter [2021-11-25 19:48:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedIncrement [2021-11-25 19:48:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedIncrement [2021-11-25 19:48:40,355 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-11-25 19:48:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-11-25 19:48:40,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-25 19:48:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-25 19:48:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2021-11-25 19:48:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2021-11-25 19:48:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:48:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2021-11-25 19:48:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2021-11-25 19:48:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-11-25 19:48:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-11-25 19:48:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:48:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2021-11-25 19:48:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2021-11-25 19:48:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:48:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:48:41,196 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:48:41,198 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:48:41,407 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:48:41,426 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-11-25 19:48:41,427 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-11-25 19:48:41,548 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:48:41,569 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-25 19:48:41,569 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-25 19:48:41,975 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:48:42,011 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-11-25 19:48:42,011 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-11-25 19:48:42,206 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:48:42,214 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:48:42,219 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 19:49:32,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-11-25 19:49:32,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-11-25 19:49:32,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume !false; [2021-11-25 19:49:32,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##128: assume false; [2021-11-25 19:49:32,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-11-25 19:49:32,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-11-25 19:49:32,988 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:49:33,836 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:49:33,836 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 19:49:33,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:49:33 BoogieIcfgContainer [2021-11-25 19:49:33,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:49:33,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:49:33,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:49:33,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:49:33,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:48:37" (1/3) ... [2021-11-25 19:49:33,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229b5c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:49:33, skipping insertion in model container [2021-11-25 19:49:33,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:48:39" (2/3) ... [2021-11-25 19:49:33,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229b5c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:49:33, skipping insertion in model container [2021-11-25 19:49:33,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:49:33" (3/3) ... [2021-11-25 19:49:33,853 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf.i.cil-1.c [2021-11-25 19:49:33,859 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:49:33,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:49:33,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:49:33,958 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:49:33,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:49:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 293 states, 189 states have (on average 1.439153439153439) internal successors, (272), 207 states have internal predecessors, (272), 80 states have call successors, (80), 22 states have call predecessors, (80), 22 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-25 19:49:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:49:34,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:49:34,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:49:34,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:49:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:49:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1637586891, now seen corresponding path program 1 times [2021-11-25 19:49:34,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:49:34,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729100760] [2021-11-25 19:49:34,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:49:34,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:49:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:49:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:49:36,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:49:36,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729100760] [2021-11-25 19:49:36,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729100760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:49:36,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:49:36,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:49:36,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472655970] [2021-11-25 19:49:36,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:49:36,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:49:36,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:49:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:49:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:49:36,260 INFO L87 Difference]: Start difference. First operand has 293 states, 189 states have (on average 1.439153439153439) internal successors, (272), 207 states have internal predecessors, (272), 80 states have call successors, (80), 22 states have call predecessors, (80), 22 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:49:38,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:41,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:43,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:49:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:49:43,664 INFO L93 Difference]: Finished difference Result 582 states and 884 transitions. [2021-11-25 19:49:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:49:43,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:49:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:49:43,682 INFO L225 Difference]: With dead ends: 582 [2021-11-25 19:49:43,682 INFO L226 Difference]: Without dead ends: 289 [2021-11-25 19:49:43,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:49:43,696 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:49:43,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:49:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-25 19:49:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-11-25 19:49:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 187 states have (on average 1.374331550802139) internal successors, (257), 203 states have internal predecessors, (257), 80 states have call successors, (80), 22 states have call predecessors, (80), 21 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-11-25 19:49:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2021-11-25 19:49:43,820 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 13 [2021-11-25 19:49:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:49:43,820 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2021-11-25 19:49:43,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:49:43,821 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2021-11-25 19:49:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 19:49:43,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:49:43,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:49:43,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:49:43,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:49:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:49:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1359317102, now seen corresponding path program 1 times [2021-11-25 19:49:43,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:49:43,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064829445] [2021-11-25 19:49:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:49:43,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:49:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:49:45,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:49:45,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:49:45,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064829445] [2021-11-25 19:49:45,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064829445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:49:45,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:49:45,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:49:45,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214189042] [2021-11-25 19:49:45,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:49:45,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:49:45,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:49:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:49:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:49:45,589 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:49:47,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:50,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:49:52,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:49:52,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:49:52,475 INFO L93 Difference]: Finished difference Result 581 states and 810 transitions. [2021-11-25 19:49:52,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:49:52,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 19:49:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:49:52,480 INFO L225 Difference]: With dead ends: 581 [2021-11-25 19:49:52,480 INFO L226 Difference]: Without dead ends: 295 [2021-11-25 19:49:52,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:49:52,484 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 2 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:49:52,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1050 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:49:52,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-25 19:49:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2021-11-25 19:49:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 207 states have internal predecessors, (261), 80 states have call successors, (80), 22 states have call predecessors, (80), 21 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-11-25 19:49:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 407 transitions. [2021-11-25 19:49:52,519 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 407 transitions. Word has length 15 [2021-11-25 19:49:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:49:52,520 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 407 transitions. [2021-11-25 19:49:52,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:49:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 407 transitions. [2021-11-25 19:49:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:49:52,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:49:52,522 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:49:52,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:49:52,523 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:49:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:49:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1361326514, now seen corresponding path program 1 times [2021-11-25 19:49:52,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:49:52,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616183790] [2021-11-25 19:49:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:49:52,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:49:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:49:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:49:57,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:49:57,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616183790] [2021-11-25 19:49:57,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616183790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:49:57,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:49:57,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:49:57,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071216244] [2021-11-25 19:49:57,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:49:57,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:49:57,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:49:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:49:57,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:49:57,614 INFO L87 Difference]: Start difference. First operand 293 states and 407 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:49:59,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:02,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:03,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:50:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:03,845 INFO L93 Difference]: Finished difference Result 630 states and 879 transitions. [2021-11-25 19:50:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:50:03,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:03,852 INFO L225 Difference]: With dead ends: 630 [2021-11-25 19:50:03,853 INFO L226 Difference]: Without dead ends: 427 [2021-11-25 19:50:03,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:03,856 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 252 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:03,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 713 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-25 19:50:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-11-25 19:50:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 414. [2021-11-25 19:50:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 266 states have (on average 1.3345864661654134) internal successors, (355), 280 states have internal predecessors, (355), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (110), 101 states have call predecessors, (110), 102 states have call successors, (110) [2021-11-25 19:50:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 578 transitions. [2021-11-25 19:50:03,932 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 578 transitions. Word has length 19 [2021-11-25 19:50:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:03,938 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 578 transitions. [2021-11-25 19:50:03,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 578 transitions. [2021-11-25 19:50:03,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 19:50:03,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:03,943 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:03,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:50:03,943 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:03,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:03,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1970266137, now seen corresponding path program 1 times [2021-11-25 19:50:03,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470202263] [2021-11-25 19:50:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:03,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:50:07,891 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:07,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470202263] [2021-11-25 19:50:07,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470202263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:07,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:07,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:50:07,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920334626] [2021-11-25 19:50:07,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:07,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:50:07,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:07,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:50:07,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:07,896 INFO L87 Difference]: Start difference. First operand 414 states and 578 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:10,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:12,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:14,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:50:14,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:14,695 INFO L93 Difference]: Finished difference Result 434 states and 604 transitions. [2021-11-25 19:50:14,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:14,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 19:50:14,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:14,701 INFO L225 Difference]: With dead ends: 434 [2021-11-25 19:50:14,701 INFO L226 Difference]: Without dead ends: 414 [2021-11-25 19:50:14,702 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:50:14,703 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 11 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:14,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 656 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2021-11-25 19:50:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-25 19:50:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-11-25 19:50:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 266 states have (on average 1.330827067669173) internal successors, (354), 280 states have internal predecessors, (354), 113 states have call successors, (113), 36 states have call predecessors, (113), 34 states have return successors, (110), 101 states have call predecessors, (110), 102 states have call successors, (110) [2021-11-25 19:50:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 577 transitions. [2021-11-25 19:50:14,737 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 577 transitions. Word has length 21 [2021-11-25 19:50:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:14,738 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 577 transitions. [2021-11-25 19:50:14,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 577 transitions. [2021-11-25 19:50:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 19:50:14,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:14,741 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:14,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:50:14,742 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1424320208, now seen corresponding path program 1 times [2021-11-25 19:50:14,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:14,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910908727] [2021-11-25 19:50:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:14,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:50:18,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:18,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910908727] [2021-11-25 19:50:18,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910908727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:18,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:18,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:50:18,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873315929] [2021-11-25 19:50:18,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:18,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:50:18,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:50:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:18,980 INFO L87 Difference]: Start difference. First operand 414 states and 577 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:21,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:23,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:25,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:50:25,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:25,716 INFO L93 Difference]: Finished difference Result 459 states and 635 transitions. [2021-11-25 19:50:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:25,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-25 19:50:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:25,722 INFO L225 Difference]: With dead ends: 459 [2021-11-25 19:50:25,722 INFO L226 Difference]: Without dead ends: 455 [2021-11-25 19:50:25,723 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:50:25,724 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 62 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:25,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 658 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2021-11-25 19:50:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2021-11-25 19:50:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 436. [2021-11-25 19:50:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 284 states have (on average 1.3380281690140845) internal successors, (380), 296 states have internal predecessors, (380), 115 states have call successors, (115), 39 states have call predecessors, (115), 36 states have return successors, (114), 103 states have call predecessors, (114), 104 states have call successors, (114) [2021-11-25 19:50:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 609 transitions. [2021-11-25 19:50:25,759 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 609 transitions. Word has length 26 [2021-11-25 19:50:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:25,760 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 609 transitions. [2021-11-25 19:50:25,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 609 transitions. [2021-11-25 19:50:25,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 19:50:25,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:25,763 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:25,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:50:25,763 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:25,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:25,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1825189374, now seen corresponding path program 1 times [2021-11-25 19:50:25,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:25,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019574403] [2021-11-25 19:50:25,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:25,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:50:29,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:29,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019574403] [2021-11-25 19:50:29,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019574403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:29,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:29,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:50:29,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768358275] [2021-11-25 19:50:29,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:29,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:50:29,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:29,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:50:29,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:50:29,449 INFO L87 Difference]: Start difference. First operand 436 states and 609 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:31,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:34,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:34,950 INFO L93 Difference]: Finished difference Result 1014 states and 1433 transitions. [2021-11-25 19:50:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:50:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 19:50:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:34,958 INFO L225 Difference]: With dead ends: 1014 [2021-11-25 19:50:34,958 INFO L226 Difference]: Without dead ends: 680 [2021-11-25 19:50:34,960 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:50:34,961 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 325 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:34,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 649 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2021-11-25 19:50:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-11-25 19:50:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 649. [2021-11-25 19:50:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 416 states have (on average 1.3197115384615385) internal successors, (549), 426 states have internal predecessors, (549), 176 states have call successors, (176), 58 states have call predecessors, (176), 56 states have return successors, (193), 169 states have call predecessors, (193), 167 states have call successors, (193) [2021-11-25 19:50:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 918 transitions. [2021-11-25 19:50:35,014 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 918 transitions. Word has length 27 [2021-11-25 19:50:35,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:35,015 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 918 transitions. [2021-11-25 19:50:35,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:50:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 918 transitions. [2021-11-25 19:50:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 19:50:35,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:35,017 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:35,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:50:35,017 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1015320627, now seen corresponding path program 1 times [2021-11-25 19:50:35,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:35,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523498849] [2021-11-25 19:50:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:35,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:50:38,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:38,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523498849] [2021-11-25 19:50:38,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523498849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:38,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:38,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:50:38,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625175448] [2021-11-25 19:50:38,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:38,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:50:38,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:50:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:50:38,873 INFO L87 Difference]: Start difference. First operand 649 states and 918 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:50:41,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:43,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:50:45,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:46,693 INFO L93 Difference]: Finished difference Result 690 states and 966 transitions. [2021-11-25 19:50:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:50:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-25 19:50:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:46,701 INFO L225 Difference]: With dead ends: 690 [2021-11-25 19:50:46,701 INFO L226 Difference]: Without dead ends: 679 [2021-11-25 19:50:46,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:50:46,703 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 433 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 27 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:46,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 649 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 455 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2021-11-25 19:50:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-11-25 19:50:46,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 665. [2021-11-25 19:50:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 431 states have (on average 1.3178654292343388) internal successors, (568), 442 states have internal predecessors, (568), 176 states have call successors, (176), 58 states have call predecessors, (176), 57 states have return successors, (194), 169 states have call predecessors, (194), 167 states have call successors, (194) [2021-11-25 19:50:46,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 938 transitions. [2021-11-25 19:50:46,760 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 938 transitions. Word has length 30 [2021-11-25 19:50:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:46,762 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 938 transitions. [2021-11-25 19:50:46,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:50:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 938 transitions. [2021-11-25 19:50:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 19:50:46,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:46,768 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:46,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:50:46,768 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1846308870, now seen corresponding path program 1 times [2021-11-25 19:50:46,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:46,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677231624] [2021-11-25 19:50:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:50:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:50:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:50:50,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:50:50,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677231624] [2021-11-25 19:50:50,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677231624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:50:50,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:50:50,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:50:50,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589712381] [2021-11-25 19:50:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:50:50,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:50:50,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:50:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:50:50,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:50:50,329 INFO L87 Difference]: Start difference. First operand 665 states and 938 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:50:52,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:55,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:50:57,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:50:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:50:58,547 INFO L93 Difference]: Finished difference Result 681 states and 951 transitions. [2021-11-25 19:50:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:50:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-25 19:50:58,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:50:58,555 INFO L225 Difference]: With dead ends: 681 [2021-11-25 19:50:58,555 INFO L226 Difference]: Without dead ends: 673 [2021-11-25 19:50:58,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:50:58,557 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 422 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:50:58,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 644 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 452 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 19:50:58,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2021-11-25 19:50:58,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 665. [2021-11-25 19:50:58,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 431 states have (on average 1.3155452436194897) internal successors, (567), 442 states have internal predecessors, (567), 176 states have call successors, (176), 58 states have call predecessors, (176), 57 states have return successors, (194), 169 states have call predecessors, (194), 167 states have call successors, (194) [2021-11-25 19:50:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 937 transitions. [2021-11-25 19:50:58,607 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 937 transitions. Word has length 31 [2021-11-25 19:50:58,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:50:58,608 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 937 transitions. [2021-11-25 19:50:58,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:50:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 937 transitions. [2021-11-25 19:50:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 19:50:58,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:50:58,610 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:50:58,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:50:58,610 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:50:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:50:58,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1668136284, now seen corresponding path program 1 times [2021-11-25 19:50:58,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:50:58,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491787718] [2021-11-25 19:50:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:50:58,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:01,995 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:01,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491787718] [2021-11-25 19:51:01,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491787718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:01,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:01,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:51:01,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763224077] [2021-11-25 19:51:01,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:01,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:51:01,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:51:01,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:51:01,997 INFO L87 Difference]: Start difference. First operand 665 states and 937 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:04,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:06,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:51:08,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:08,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:08,658 INFO L93 Difference]: Finished difference Result 1208 states and 1714 transitions. [2021-11-25 19:51:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:51:08,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-25 19:51:08,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:08,670 INFO L225 Difference]: With dead ends: 1208 [2021-11-25 19:51:08,670 INFO L226 Difference]: Without dead ends: 1179 [2021-11-25 19:51:08,671 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:51:08,673 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 350 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:08,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 690 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 19:51:08,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-11-25 19:51:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1159. [2021-11-25 19:51:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 743 states have (on average 1.3189771197846567) internal successors, (980), 755 states have internal predecessors, (980), 311 states have call successors, (311), 106 states have call predecessors, (311), 104 states have return successors, (361), 307 states have call predecessors, (361), 302 states have call successors, (361) [2021-11-25 19:51:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1652 transitions. [2021-11-25 19:51:08,751 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1652 transitions. Word has length 32 [2021-11-25 19:51:08,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:08,752 INFO L470 AbstractCegarLoop]: Abstraction has 1159 states and 1652 transitions. [2021-11-25 19:51:08,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1652 transitions. [2021-11-25 19:51:08,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 19:51:08,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:08,754 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:08,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 19:51:08,754 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:08,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash -164175070, now seen corresponding path program 1 times [2021-11-25 19:51:08,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:08,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391035873] [2021-11-25 19:51:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:08,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:11,977 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:11,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391035873] [2021-11-25 19:51:11,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391035873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:11,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:11,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:51:11,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386233674] [2021-11-25 19:51:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:11,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:51:11,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:51:11,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:51:11,979 INFO L87 Difference]: Start difference. First operand 1159 states and 1652 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:14,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:16,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:18,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:51:20,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:20,700 INFO L93 Difference]: Finished difference Result 1173 states and 1665 transitions. [2021-11-25 19:51:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:51:20,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2021-11-25 19:51:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:20,712 INFO L225 Difference]: With dead ends: 1173 [2021-11-25 19:51:20,713 INFO L226 Difference]: Without dead ends: 1157 [2021-11-25 19:51:20,714 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:51:20,715 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:20,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 651 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 4 Unknown, 0 Unchecked, 8.7s Time] [2021-11-25 19:51:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-11-25 19:51:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1157. [2021-11-25 19:51:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 742 states have (on average 1.3180592991913747) internal successors, (978), 754 states have internal predecessors, (978), 310 states have call successors, (310), 106 states have call predecessors, (310), 104 states have return successors, (360), 306 states have call predecessors, (360), 301 states have call successors, (360) [2021-11-25 19:51:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1648 transitions. [2021-11-25 19:51:20,797 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1648 transitions. Word has length 33 [2021-11-25 19:51:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:20,798 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1648 transitions. [2021-11-25 19:51:20,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1648 transitions. [2021-11-25 19:51:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 19:51:20,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:20,800 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:20,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 19:51:20,801 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:20,802 INFO L85 PathProgramCache]: Analyzing trace with hash -452248886, now seen corresponding path program 1 times [2021-11-25 19:51:20,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:20,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540523521] [2021-11-25 19:51:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:20,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:24,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:24,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540523521] [2021-11-25 19:51:24,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540523521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:24,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:24,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:51:24,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099853861] [2021-11-25 19:51:24,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:24,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:51:24,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:24,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:51:24,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:51:24,347 INFO L87 Difference]: Start difference. First operand 1157 states and 1648 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:51:26,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:29,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:51:31,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:31,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:31,702 INFO L93 Difference]: Finished difference Result 1196 states and 1688 transitions. [2021-11-25 19:51:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:51:31,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-25 19:51:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:31,712 INFO L225 Difference]: With dead ends: 1196 [2021-11-25 19:51:31,712 INFO L226 Difference]: Without dead ends: 1170 [2021-11-25 19:51:31,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:51:31,714 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 362 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 21 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:31,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 488 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 258 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2021-11-25 19:51:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2021-11-25 19:51:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1157. [2021-11-25 19:51:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 742 states have (on average 1.3153638814016173) internal successors, (976), 754 states have internal predecessors, (976), 310 states have call successors, (310), 106 states have call predecessors, (310), 104 states have return successors, (360), 306 states have call predecessors, (360), 301 states have call successors, (360) [2021-11-25 19:51:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1646 transitions. [2021-11-25 19:51:31,784 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1646 transitions. Word has length 33 [2021-11-25 19:51:31,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:31,785 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1646 transitions. [2021-11-25 19:51:31,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:51:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1646 transitions. [2021-11-25 19:51:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 19:51:31,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:31,786 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:31,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 19:51:31,787 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:31,787 INFO L85 PathProgramCache]: Analyzing trace with hash -967075652, now seen corresponding path program 1 times [2021-11-25 19:51:31,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:31,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598343855] [2021-11-25 19:51:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:31,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:35,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:35,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598343855] [2021-11-25 19:51:35,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598343855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:35,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:35,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:51:35,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503340367] [2021-11-25 19:51:35,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:35,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:51:35,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:35,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:51:35,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:51:35,125 INFO L87 Difference]: Start difference. First operand 1157 states and 1646 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:37,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:39,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:51:41,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:42,135 INFO L93 Difference]: Finished difference Result 1720 states and 2543 transitions. [2021-11-25 19:51:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:51:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-25 19:51:42,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:42,152 INFO L225 Difference]: With dead ends: 1720 [2021-11-25 19:51:42,152 INFO L226 Difference]: Without dead ends: 1712 [2021-11-25 19:51:42,154 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:51:42,155 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 240 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:42,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 701 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 19:51:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-25 19:51:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1262. [2021-11-25 19:51:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 808 states have (on average 1.3217821782178218) internal successors, (1068), 825 states have internal predecessors, (1068), 338 states have call successors, (338), 115 states have call predecessors, (338), 115 states have return successors, (407), 331 states have call predecessors, (407), 329 states have call successors, (407) [2021-11-25 19:51:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1813 transitions. [2021-11-25 19:51:42,265 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1813 transitions. Word has length 35 [2021-11-25 19:51:42,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:42,265 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 1813 transitions. [2021-11-25 19:51:42,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:42,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1813 transitions. [2021-11-25 19:51:42,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 19:51:42,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:42,267 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:42,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 19:51:42,268 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:42,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:42,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1260822521, now seen corresponding path program 1 times [2021-11-25 19:51:42,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:42,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234039370] [2021-11-25 19:51:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:42,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:45,677 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:45,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234039370] [2021-11-25 19:51:45,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234039370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:45,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:45,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:51:45,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232800447] [2021-11-25 19:51:45,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:45,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:51:45,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:51:45,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:51:45,680 INFO L87 Difference]: Start difference. First operand 1262 states and 1813 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:51:47,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:50,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:51:52,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:51:53,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:51:53,137 INFO L93 Difference]: Finished difference Result 1292 states and 1844 transitions. [2021-11-25 19:51:53,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:51:53,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-25 19:51:53,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:51:53,147 INFO L225 Difference]: With dead ends: 1292 [2021-11-25 19:51:53,147 INFO L226 Difference]: Without dead ends: 1266 [2021-11-25 19:51:53,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:51:53,149 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 353 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:51:53,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 495 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 250 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 19:51:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2021-11-25 19:51:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1262. [2021-11-25 19:51:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 808 states have (on average 1.3193069306930694) internal successors, (1066), 825 states have internal predecessors, (1066), 338 states have call successors, (338), 115 states have call predecessors, (338), 115 states have return successors, (407), 331 states have call predecessors, (407), 329 states have call successors, (407) [2021-11-25 19:51:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1811 transitions. [2021-11-25 19:51:53,229 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1811 transitions. Word has length 34 [2021-11-25 19:51:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:51:53,230 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 1811 transitions. [2021-11-25 19:51:53,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:51:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1811 transitions. [2021-11-25 19:51:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 19:51:53,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:51:53,231 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:51:53,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 19:51:53,232 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:51:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:51:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash 538837051, now seen corresponding path program 1 times [2021-11-25 19:51:53,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:51:53,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696318451] [2021-11-25 19:51:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:51:53,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:51:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:51:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:51:56,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:51:56,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696318451] [2021-11-25 19:51:56,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696318451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:51:56,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:51:56,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:51:56,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61254858] [2021-11-25 19:51:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:51:56,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:51:56,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:51:56,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:51:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:51:56,458 INFO L87 Difference]: Start difference. First operand 1262 states and 1811 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:51:58,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:01,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:52:03,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:52:04,734 INFO L93 Difference]: Finished difference Result 1726 states and 2544 transitions. [2021-11-25 19:52:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:52:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-11-25 19:52:04,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:52:04,749 INFO L225 Difference]: With dead ends: 1726 [2021-11-25 19:52:04,749 INFO L226 Difference]: Without dead ends: 1718 [2021-11-25 19:52:04,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:52:04,752 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 741 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 281 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:52:04,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 735 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 515 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 19:52:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-11-25 19:52:04,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1262. [2021-11-25 19:52:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 808 states have (on average 1.318069306930693) internal successors, (1065), 825 states have internal predecessors, (1065), 338 states have call successors, (338), 115 states have call predecessors, (338), 115 states have return successors, (407), 331 states have call predecessors, (407), 329 states have call successors, (407) [2021-11-25 19:52:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1810 transitions. [2021-11-25 19:52:04,848 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1810 transitions. Word has length 36 [2021-11-25 19:52:04,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:52:04,849 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 1810 transitions. [2021-11-25 19:52:04,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 19:52:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1810 transitions. [2021-11-25 19:52:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 19:52:04,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:52:04,850 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:52:04,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 19:52:04,851 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:52:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:52:04,851 INFO L85 PathProgramCache]: Analyzing trace with hash 734936773, now seen corresponding path program 1 times [2021-11-25 19:52:04,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:52:04,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441817490] [2021-11-25 19:52:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:52:04,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:52:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:52:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:52:08,037 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:52:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441817490] [2021-11-25 19:52:08,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441817490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:52:08,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:52:08,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:52:08,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932449026] [2021-11-25 19:52:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:52:08,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:52:08,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:52:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:52:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:52:08,039 INFO L87 Difference]: Start difference. First operand 1262 states and 1810 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:52:10,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:12,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:52:14,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:52:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:52:15,105 INFO L93 Difference]: Finished difference Result 1820 states and 2714 transitions. [2021-11-25 19:52:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:52:15,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 19:52:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:52:15,123 INFO L225 Difference]: With dead ends: 1820 [2021-11-25 19:52:15,123 INFO L226 Difference]: Without dead ends: 1807 [2021-11-25 19:52:15,125 INFO L932 BasicCegarLoop]: 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 [2021-11-25 19:52:15,126 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 244 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:52:15,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 812 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2021-11-25 19:52:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2021-11-25 19:52:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1261. [2021-11-25 19:52:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 807 states have (on average 1.3147459727385378) internal successors, (1061), 824 states have internal predecessors, (1061), 337 states have call successors, (337), 115 states have call predecessors, (337), 116 states have return successors, (415), 331 states have call predecessors, (415), 329 states have call successors, (415) [2021-11-25 19:52:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1813 transitions. [2021-11-25 19:52:15,292 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1813 transitions. Word has length 35 [2021-11-25 19:52:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:52:15,293 INFO L470 AbstractCegarLoop]: Abstraction has 1261 states and 1813 transitions. [2021-11-25 19:52:15,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:52:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1813 transitions. [2021-11-25 19:52:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 19:52:15,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:52:15,294 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:52:15,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 19:52:15,295 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:52:15,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:52:15,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1372944730, now seen corresponding path program 1 times [2021-11-25 19:52:15,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:52:15,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264207427] [2021-11-25 19:52:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:52:15,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:52:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:52:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:52:17,664 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:52:17,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264207427] [2021-11-25 19:52:17,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264207427] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:52:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904666836] [2021-11-25 19:52:17,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:52:17,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:52:17,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:52:17,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:52:17,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a18b95fb-a33f-4a60-81c4-953f4db2d1ab/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:52:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:52:28,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 19453 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 19:52:28,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:52:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:52:28,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:52:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:52:28,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904666836] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:52:28,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [567411430] [2021-11-25 19:52:28,435 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-11-25 19:52:28,435 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:52:28,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:52:28,447 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:52:28,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:52:31,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:31,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:31,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:31,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:31,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:32,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:33,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:34,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:34,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:34,854 INFO L354 Elim1Store]: treesize reduction 198, result has 33.6 percent of original size [2021-11-25 19:52:34,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 80 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 22 case distinctions, treesize of input 77 treesize of output 157 [2021-11-25 19:52:35,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 79 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 102 [2021-11-25 19:52:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:35,533 INFO L244 Elim1Store]: Index analysis took 186 ms [2021-11-25 19:52:35,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 85 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 235 [2021-11-25 19:52:35,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:36,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:37,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:38,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:39,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:40,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:40,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:40,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:40,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:40,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:41,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:42,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:42,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:42,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:42,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:42,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 53 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:43,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:44,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:45,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:45,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:45,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:45,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:45,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:46,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:46,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:46,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:46,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:46,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:47,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:47,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:47,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:47,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:47,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:47,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:47,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 16 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 48 [2021-11-25 19:52:48,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:48,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:48,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:48,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:48,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:48,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:49,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:49,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:49,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:49,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:50,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:50,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:50,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:50,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:51,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:51,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:51,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:51,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:51,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:52,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:52,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:52:52,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2021-11-25 19:52:52,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 19:52:52,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:52,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:53,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:53,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:53,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:53,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:54,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 53 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:54,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:54,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:54,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:54,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:55,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:55,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:55,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:55,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:56,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:56,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:56,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:57,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:57,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:57,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:57,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:57,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:58,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:58,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:58,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:58,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:58,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:59,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 48 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:59,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:59,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:52:59,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:00,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:00,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:00,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:00,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:01,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:01,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:01,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:01,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:02,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:02,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:02,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:02,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:03,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:03,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:03,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 55 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:04,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:04,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:04,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:05,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 56 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:53:18,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:53:21,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:53:42,095 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 4336 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:53:47,335 WARN L227 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 4336 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:53:53,450 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 5410 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2021-11-25 19:54:10,026 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 4346 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 19:55:01,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:55:01,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17158 treesize of output 17160 [2021-11-25 19:55:22,045 WARN L227 SmtUtils]: Spent 20.49s on a formula simplification. DAG size of input: 4354 DAG size of output: 4354 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 19:55:22,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:55:22,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17168 treesize of output 17170 [2021-11-25 19:55:27,737 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 4354 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 19:55:38,032 WARN L227 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 4342 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)