./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs --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 b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:40:56,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:40:56,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:40:56,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:40:56,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:40:56,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:40:56,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:40:56,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:40:56,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:40:56,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:40:56,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:40:56,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:40:56,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:40:56,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:40:56,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:40:56,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:40:56,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:40:56,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:40:56,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:40:56,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:40:56,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:40:56,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:40:56,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:40:56,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:40:56,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:40:56,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:40:56,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:40:56,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:40:56,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:40:56,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:40:56,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:40:56,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:40:56,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:40:56,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:40:56,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:40:56,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:40:56,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:40:56,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:40:56,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:40:56,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:40:56,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:40:56,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:40:56,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:40:56,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:40:56,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:40:56,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:40:56,952 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:40:56,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:40:56,952 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:40:56,953 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:40:56,953 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:40:56,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:40:56,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:40:56,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:40:56,955 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:40:56,956 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:40:56,956 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:40:56,956 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:40:56,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:40:56,957 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:40:56,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:40:56,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:40:56,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:40:56,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:40:56,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:40:56,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:40:56,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:40:56,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:40:56,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:40:56,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:40:56,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:40:56,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:40:56,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:40:56,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:56,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:40:56,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:40:56,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:40:56,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:40:56,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:40:56,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:40:56,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:40:56,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:40:56,965 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_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d [2021-11-19 14:40:57,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:40:57,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:40:57,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:40:57,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:40:57,280 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:40:57,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-11-19 14:40:57,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/data/e12b36bbc/159cf81932554f7d9651446bb914b64b/FLAG9701a39c2 [2021-11-19 14:40:57,858 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:40:57,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-11-19 14:40:57,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/data/e12b36bbc/159cf81932554f7d9651446bb914b64b/FLAG9701a39c2 [2021-11-19 14:40:58,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/data/e12b36bbc/159cf81932554f7d9651446bb914b64b [2021-11-19 14:40:58,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:40:58,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:40:58,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:58,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:40:58,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:40:58,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b143c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58, skipping insertion in model container [2021-11-19 14:40:58,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:40:58,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:40:58,453 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_654437ca-83e4-4ec6-a652-4cf5346010e2/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2021-11-19 14:40:58,472 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:58,478 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:40:58,488 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_654437ca-83e4-4ec6-a652-4cf5346010e2/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2021-11-19 14:40:58,491 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:40:58,502 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:40:58,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58 WrapperNode [2021-11-19 14:40:58,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:40:58,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:58,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:40:58,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:40:58,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,536 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2021-11-19 14:40:58,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:40:58,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:40:58,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:40:58,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:40:58,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:40:58,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:40:58,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:40:58,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:40:58,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (1/1) ... [2021-11-19 14:40:58,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:40:58,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:58,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:40:58,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:40:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:40:58,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:40:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:40:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:40:58,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:40:58,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:40:58,709 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:40:58,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:40:58,799 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:40:58,817 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:40:58,818 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:40:58,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:58 BoogieIcfgContainer [2021-11-19 14:40:58,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:40:58,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:40:58,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:40:58,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:40:58,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:40:58" (1/3) ... [2021-11-19 14:40:58,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7b6e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:58, skipping insertion in model container [2021-11-19 14:40:58,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:40:58" (2/3) ... [2021-11-19 14:40:58,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7b6e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:40:58, skipping insertion in model container [2021-11-19 14:40:58,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:58" (3/3) ... [2021-11-19 14:40:58,829 INFO L111 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2021-11-19 14:40:58,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:40:58,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:40:58,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:40:58,888 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 [2021-11-19 14:40:58,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:40:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 14:40:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:40:58,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:58,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:58,911 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:40:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 7406056, now seen corresponding path program 1 times [2021-11-19 14:40:58,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:40:58,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672200841] [2021-11-19 14:40:58,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:58,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:40:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:40:59,244 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:40:59,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672200841] [2021-11-19 14:40:59,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672200841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:59,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:59,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 14:40:59,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249363814] [2021-11-19 14:40:59,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:59,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:40:59,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:40:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:40:59,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:40:59,299 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-19 14:40:59,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:59,455 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-11-19 14:40:59,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:59,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 7 [2021-11-19 14:40:59,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:59,465 INFO L225 Difference]: With dead ends: 32 [2021-11-19 14:40:59,465 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 14:40:59,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:40:59,473 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:59,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:40:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 14:40:59,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 14:40:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 14:40:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-19 14:40:59,508 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-11-19 14:40:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:59,509 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-19 14:40:59,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-19 14:40:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-19 14:40:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 14:40:59,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:59,511 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:59,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:40:59,512 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:40:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -230121834, now seen corresponding path program 1 times [2021-11-19 14:40:59,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:40:59,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021043125] [2021-11-19 14:40:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:59,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:40:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:40:59,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:40:59,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021043125] [2021-11-19 14:40:59,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021043125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:40:59,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:40:59,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 14:40:59,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270470412] [2021-11-19 14:40:59,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:40:59,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:40:59,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:40:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:40:59,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:40:59,594 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 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) [2021-11-19 14:40:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:40:59,678 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-11-19 14:40:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:40:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 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 12 [2021-11-19 14:40:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:40:59,680 INFO L225 Difference]: With dead ends: 26 [2021-11-19 14:40:59,681 INFO L226 Difference]: Without dead ends: 24 [2021-11-19 14:40:59,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:40:59,685 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:40:59,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:40:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-19 14:40:59,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-11-19 14:40:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:40:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-19 14:40:59,702 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 12 [2021-11-19 14:40:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:40:59,703 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-19 14:40:59,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 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) [2021-11-19 14:40:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-19 14:40:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 14:40:59,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:40:59,705 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-19 14:40:59,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:40:59,706 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:40:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:40:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash 181124150, now seen corresponding path program 1 times [2021-11-19 14:40:59,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:40:59,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63143819] [2021-11-19 14:40:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:59,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:40:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:40:59,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:40:59,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63143819] [2021-11-19 14:40:59,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63143819] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:40:59,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127576681] [2021-11-19 14:40:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:40:59,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:40:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:40:59,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:40:59,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:40:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:40:59,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:40:59,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:41:00,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:41:00,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127576681] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:41:00,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149146839] [2021-11-19 14:41:00,346 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-19 14:41:00,347 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:41:00,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:41:00,372 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:41:00,373 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:41:00,429 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.0 percent of original size [2021-11-19 14:41:00,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,463 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-11-19 14:41:00,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:00,482 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.0 percent of original size [2021-11-19 14:41:00,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,496 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-11-19 14:41:00,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:00,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,714 INFO L180 QuantifierPusher]: treesize reduction 27, result has 81.6 percent of original size [2021-11-19 14:41:00,733 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:00,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:00,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,755 INFO L180 QuantifierPusher]: treesize reduction 27, result has 82.5 percent of original size [2021-11-19 14:41:00,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 14:41:00,782 INFO L180 QuantifierPusher]: treesize reduction 27, result has 81.6 percent of original size [2021-11-19 14:41:00,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:00,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:00,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,814 INFO L180 QuantifierPusher]: treesize reduction 27, result has 82.5 percent of original size [2021-11-19 14:41:00,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 14:41:00,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,898 INFO L180 QuantifierPusher]: treesize reduction 27, result has 80.3 percent of original size [2021-11-19 14:41:00,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-19 14:41:00,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-19 14:41:00,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:00,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:00,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-19 14:41:00,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:00,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,063 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.3 percent of original size [2021-11-19 14:41:01,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:01,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:01,085 INFO L180 QuantifierPusher]: treesize reduction 36, result has 79.2 percent of original size [2021-11-19 14:41:01,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:41:01,101 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.3 percent of original size [2021-11-19 14:41:01,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:01,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:01,130 INFO L180 QuantifierPusher]: treesize reduction 36, result has 79.2 percent of original size [2021-11-19 14:41:01,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:41:01,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,240 INFO L180 QuantifierPusher]: treesize reduction 24, result has 90.9 percent of original size [2021-11-19 14:41:01,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:41:01,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,278 INFO L185 QuantifierPusher]: treesize reduction 14, result has 93.4 percent of original size 198 [2021-11-19 14:41:01,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,288 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.5 percent of original size [2021-11-19 14:41:01,305 INFO L185 QuantifierPusher]: treesize reduction 17, result has 90.8 percent of original size 167 [2021-11-19 14:41:01,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,312 INFO L180 QuantifierPusher]: treesize reduction 17, result has 91.0 percent of original size [2021-11-19 14:41:01,334 INFO L185 QuantifierPusher]: treesize reduction 9, result has 94.4 percent of original size 152 [2021-11-19 14:41:01,336 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,341 INFO L180 QuantifierPusher]: treesize reduction 9, result has 94.7 percent of original size [2021-11-19 14:41:01,351 INFO L185 QuantifierPusher]: treesize reduction 19, result has 86.6 percent of original size 123 [2021-11-19 14:41:01,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,357 INFO L180 QuantifierPusher]: treesize reduction 19, result has 88.3 percent of original size [2021-11-19 14:41:01,371 INFO L185 QuantifierPusher]: treesize reduction 6, result has 95.1 percent of original size 117 [2021-11-19 14:41:01,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:01,387 INFO L185 QuantifierPusher]: treesize reduction 6, result has 89.7 percent of original size 52 [2021-11-19 14:41:01,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,399 INFO L185 QuantifierPusher]: treesize reduction 5, result has 98.0 percent of original size 244 [2021-11-19 14:41:01,408 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,414 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,426 INFO L185 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size 201 [2021-11-19 14:41:01,428 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,436 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.3 percent of original size [2021-11-19 14:41:01,452 INFO L185 QuantifierPusher]: treesize reduction 23, result has 88.1 percent of original size 171 [2021-11-19 14:41:01,454 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,461 INFO L180 QuantifierPusher]: treesize reduction 23, result has 88.4 percent of original size [2021-11-19 14:41:01,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-19 14:41:01,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,488 INFO L185 QuantifierPusher]: treesize reduction 14, result has 90.6 percent of original size 135 [2021-11-19 14:41:01,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,494 INFO L180 QuantifierPusher]: treesize reduction 14, result has 91.8 percent of original size [2021-11-19 14:41:01,512 INFO L185 QuantifierPusher]: treesize reduction 9, result has 92.9 percent of original size 117 [2021-11-19 14:41:01,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:01,523 INFO L185 QuantifierPusher]: treesize reduction 6, result has 89.7 percent of original size 52 [2021-11-19 14:41:01,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,534 INFO L185 QuantifierPusher]: treesize reduction 5, result has 98.0 percent of original size 244 [2021-11-19 14:41:01,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:01,713 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.4 percent of original size [2021-11-19 14:41:01,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:41:01,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,755 INFO L185 QuantifierPusher]: treesize reduction 12, result has 93.5 percent of original size 172 [2021-11-19 14:41:01,757 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,763 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-11-19 14:41:01,774 INFO L185 QuantifierPusher]: treesize reduction 21, result has 87.3 percent of original size 145 [2021-11-19 14:41:01,775 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,787 INFO L180 QuantifierPusher]: treesize reduction 21, result has 87.9 percent of original size [2021-11-19 14:41:01,797 INFO L185 QuantifierPusher]: treesize reduction 16, result has 88.5 percent of original size 123 [2021-11-19 14:41:01,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,802 INFO L180 QuantifierPusher]: treesize reduction 16, result has 90.2 percent of original size [2021-11-19 14:41:01,815 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 143 [2021-11-19 14:41:01,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:01,835 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:01,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:01,841 INFO L185 QuantifierPusher]: treesize reduction 15, result has 77.6 percent of original size 52 [2021-11-19 14:41:01,852 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.6 percent of original size [2021-11-19 14:41:01,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-19 14:41:01,876 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.4 percent of original size [2021-11-19 14:41:01,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,902 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.9 percent of original size 188 [2021-11-19 14:41:01,903 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,910 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.0 percent of original size [2021-11-19 14:41:01,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:41:01,926 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-19 14:41:01,941 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,958 INFO L185 QuantifierPusher]: treesize reduction 30, result has 81.8 percent of original size 135 [2021-11-19 14:41:01,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,964 INFO L180 QuantifierPusher]: treesize reduction 30, result has 84.2 percent of original size [2021-11-19 14:41:01,979 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.0 percent of original size 143 [2021-11-19 14:41:01,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,990 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:01,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:01,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:01,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:02,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:02,002 INFO L185 QuantifierPusher]: treesize reduction 15, result has 77.6 percent of original size 52 [2021-11-19 14:41:02,013 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.6 percent of original size [2021-11-19 14:41:02,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-19 14:41:02,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,160 INFO L180 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size [2021-11-19 14:41:02,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 14:41:02,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:02,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 14:41:02,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,186 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-19 14:41:02,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:02,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 14:41:02,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,212 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-19 14:41:02,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,249 INFO L180 QuantifierPusher]: treesize reduction 24, result has 73.6 percent of original size [2021-11-19 14:41:02,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,262 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,275 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:02,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:02,280 INFO L180 QuantifierPusher]: treesize reduction 24, result has 75.5 percent of original size [2021-11-19 14:41:02,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-19 14:41:02,289 INFO L180 QuantifierPusher]: treesize reduction 24, result has 73.6 percent of original size [2021-11-19 14:41:02,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,306 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:02,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:02,313 INFO L180 QuantifierPusher]: treesize reduction 24, result has 75.5 percent of original size [2021-11-19 14:41:02,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-19 14:41:02,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,342 INFO L180 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size [2021-11-19 14:41:02,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 14:41:02,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,461 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.0 percent of original size [2021-11-19 14:41:02,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,472 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:41:02,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-19 14:41:02,482 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,488 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-19 14:41:02,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-19 14:41:02,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,505 INFO L185 QuantifierPusher]: treesize reduction 6, result has 92.9 percent of original size 78 [2021-11-19 14:41:02,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,509 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.5 percent of original size [2021-11-19 14:41:02,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:41:02,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:41:02,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,524 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,530 INFO L185 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-11-19 14:41:02,532 INFO L185 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-11-19 14:41:02,535 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,539 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 14:41:02,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 14:41:02,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-19 14:41:02,555 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:02,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,578 INFO L185 QuantifierPusher]: treesize reduction 15, result has 89.7 percent of original size 131 [2021-11-19 14:41:02,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,583 INFO L180 QuantifierPusher]: treesize reduction 15, result has 90.1 percent of original size [2021-11-19 14:41:02,587 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,591 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,595 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:02,601 INFO L185 QuantifierPusher]: treesize reduction 11, result has 90.8 percent of original size 108 [2021-11-19 14:41:02,605 INFO L185 QuantifierPusher]: treesize reduction 11, result has 90.8 percent of original size 108 [2021-11-19 14:41:02,616 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:41:02,631 INFO L185 QuantifierPusher]: treesize reduction 12, result has 83.3 percent of original size 60 [2021-11-19 14:41:02,633 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:41:02,637 INFO L185 QuantifierPusher]: treesize reduction 12, result has 84.2 percent of original size 64 [2021-11-19 14:41:02,639 INFO L185 QuantifierPusher]: treesize reduction 12, result has 84.2 percent of original size 64 [2021-11-19 14:41:02,646 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:02,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-19 14:41:02,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,693 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:02,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-19 14:41:02,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,733 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,738 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:02,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,750 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:02,755 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.2 percent of original size 153 [2021-11-19 14:41:02,762 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.2 percent of original size 153 [2021-11-19 14:41:02,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:41:02,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,795 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:41:02,799 INFO L185 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size 60 [2021-11-19 14:41:02,802 INFO L185 QuantifierPusher]: treesize reduction 27, result has 70.3 percent of original size 64 [2021-11-19 14:41:02,804 INFO L185 QuantifierPusher]: treesize reduction 27, result has 70.3 percent of original size 64 [2021-11-19 14:41:02,811 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:02,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-19 14:41:02,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,880 INFO L180 QuantifierPusher]: treesize reduction 18, result has 78.0 percent of original size [2021-11-19 14:41:02,883 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:02,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:02,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:02,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:02,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:02,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:02,913 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 21 for LOIs [2021-11-19 14:41:02,921 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:41:03,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:41:03,873 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:41:03,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-11-19 14:41:03,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788651778] [2021-11-19 14:41:03,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:41:03,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:41:03,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:41:03,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:41:03,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:41:03,877 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 14:41:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:03,937 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-11-19 14:41:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:41:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-11-19 14:41:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:03,939 INFO L225 Difference]: With dead ends: 34 [2021-11-19 14:41:03,940 INFO L226 Difference]: Without dead ends: 32 [2021-11-19 14:41:03,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:41:03,941 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:03,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:41:03,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-19 14:41:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-11-19 14:41:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 14:41:03,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-11-19 14:41:03,950 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 24 [2021-11-19 14:41:03,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:03,951 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-11-19 14:41:03,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-11-19 14:41:03,951 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-11-19 14:41:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-19 14:41:03,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:41:03,953 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2021-11-19 14:41:03,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:04,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-19 14:41:04,173 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:41:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:41:04,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1617914326, now seen corresponding path program 2 times [2021-11-19 14:41:04,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:41:04,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33642058] [2021-11-19 14:41:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:41:04,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:41:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:41:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-19 14:41:04,273 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:41:04,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33642058] [2021-11-19 14:41:04,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33642058] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:41:04,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211552202] [2021-11-19 14:41:04,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:41:04,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:41:04,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:41:04,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:41:04,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:41:04,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 14:41:04,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:41:04,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:41:04,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:41:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-19 14:41:04,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:41:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-19 14:41:04,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211552202] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:41:04,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2067801766] [2021-11-19 14:41:04,548 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-19 14:41:04,549 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:41:04,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:41:04,549 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:41:04,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:41:04,567 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.0 percent of original size [2021-11-19 14:41:04,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,578 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-11-19 14:41:04,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:04,590 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.0 percent of original size [2021-11-19 14:41:04,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,597 INFO L180 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-11-19 14:41:04,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:04,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,667 INFO L180 QuantifierPusher]: treesize reduction 27, result has 81.6 percent of original size [2021-11-19 14:41:04,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:04,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,685 INFO L180 QuantifierPusher]: treesize reduction 27, result has 82.5 percent of original size [2021-11-19 14:41:04,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 14:41:04,699 INFO L180 QuantifierPusher]: treesize reduction 27, result has 81.6 percent of original size [2021-11-19 14:41:04,703 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:04,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,710 INFO L180 QuantifierPusher]: treesize reduction 27, result has 82.5 percent of original size [2021-11-19 14:41:04,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-19 14:41:04,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,748 INFO L180 QuantifierPusher]: treesize reduction 27, result has 80.3 percent of original size [2021-11-19 14:41:04,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-11-19 14:41:04,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-19 14:41:04,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-19 14:41:04,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,838 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.3 percent of original size [2021-11-19 14:41:04,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:04,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,849 INFO L180 QuantifierPusher]: treesize reduction 36, result has 79.2 percent of original size [2021-11-19 14:41:04,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:41:04,858 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.3 percent of original size [2021-11-19 14:41:04,864 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:04,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:04,871 INFO L180 QuantifierPusher]: treesize reduction 36, result has 79.2 percent of original size [2021-11-19 14:41:04,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-19 14:41:04,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:04,953 INFO L180 QuantifierPusher]: treesize reduction 24, result has 90.9 percent of original size [2021-11-19 14:41:04,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:41:04,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:04,978 INFO L185 QuantifierPusher]: treesize reduction 10, result has 95.1 percent of original size 193 [2021-11-19 14:41:04,980 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,986 INFO L180 QuantifierPusher]: treesize reduction 10, result has 95.2 percent of original size [2021-11-19 14:41:04,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-19 14:41:04,996 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:04,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,009 INFO L185 QuantifierPusher]: treesize reduction 12, result has 92.8 percent of original size 155 [2021-11-19 14:41:05,011 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,017 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.1 percent of original size [2021-11-19 14:41:05,025 INFO L185 QuantifierPusher]: treesize reduction 19, result has 86.6 percent of original size 123 [2021-11-19 14:41:05,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,029 INFO L180 QuantifierPusher]: treesize reduction 19, result has 88.3 percent of original size [2021-11-19 14:41:05,036 INFO L185 QuantifierPusher]: treesize reduction 6, result has 95.1 percent of original size 117 [2021-11-19 14:41:05,039 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:05,053 INFO L185 QuantifierPusher]: treesize reduction 6, result has 89.7 percent of original size 52 [2021-11-19 14:41:05,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,062 INFO L185 QuantifierPusher]: treesize reduction 5, result has 98.0 percent of original size 244 [2021-11-19 14:41:05,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,097 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,106 INFO L185 QuantifierPusher]: treesize reduction 14, result has 93.4 percent of original size 198 [2021-11-19 14:41:05,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,114 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.5 percent of original size [2021-11-19 14:41:05,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-11-19 14:41:05,128 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,141 INFO L185 QuantifierPusher]: treesize reduction 31, result has 84.3 percent of original size 166 [2021-11-19 14:41:05,143 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,147 INFO L180 QuantifierPusher]: treesize reduction 31, result has 84.9 percent of original size [2021-11-19 14:41:05,156 INFO L185 QuantifierPusher]: treesize reduction 8, result has 94.6 percent of original size 139 [2021-11-19 14:41:05,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,161 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.3 percent of original size [2021-11-19 14:41:05,170 INFO L185 QuantifierPusher]: treesize reduction 9, result has 92.9 percent of original size 117 [2021-11-19 14:41:05,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:05,180 INFO L185 QuantifierPusher]: treesize reduction 6, result has 89.7 percent of original size 52 [2021-11-19 14:41:05,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,190 INFO L185 QuantifierPusher]: treesize reduction 5, result has 98.0 percent of original size 244 [2021-11-19 14:41:05,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,315 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.4 percent of original size [2021-11-19 14:41:05,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,332 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.9 percent of original size 188 [2021-11-19 14:41:05,333 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,339 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.0 percent of original size [2021-11-19 14:41:05,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:41:05,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,359 INFO L185 QuantifierPusher]: treesize reduction 17, result has 89.9 percent of original size 151 [2021-11-19 14:41:05,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,364 INFO L180 QuantifierPusher]: treesize reduction 17, result has 90.3 percent of original size [2021-11-19 14:41:05,369 INFO L185 QuantifierPusher]: treesize reduction 22, result has 84.8 percent of original size 123 [2021-11-19 14:41:05,370 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,373 INFO L180 QuantifierPusher]: treesize reduction 22, result has 87.1 percent of original size [2021-11-19 14:41:05,382 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 143 [2021-11-19 14:41:05,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:05,406 INFO L185 QuantifierPusher]: treesize reduction 15, result has 77.6 percent of original size 52 [2021-11-19 14:41:05,415 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.6 percent of original size [2021-11-19 14:41:05,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-19 14:41:05,429 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.4 percent of original size [2021-11-19 14:41:05,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,446 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.9 percent of original size 188 [2021-11-19 14:41:05,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,452 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.0 percent of original size [2021-11-19 14:41:05,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:41:05,461 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,473 INFO L185 QuantifierPusher]: treesize reduction 23, result has 86.8 percent of original size 151 [2021-11-19 14:41:05,474 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,478 INFO L180 QuantifierPusher]: treesize reduction 23, result has 87.4 percent of original size [2021-11-19 14:41:05,483 INFO L185 QuantifierPusher]: treesize reduction 22, result has 84.8 percent of original size 123 [2021-11-19 14:41:05,484 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,487 INFO L180 QuantifierPusher]: treesize reduction 22, result has 87.1 percent of original size [2021-11-19 14:41:05,495 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 143 [2021-11-19 14:41:05,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 14:41:05,509 INFO L185 QuantifierPusher]: treesize reduction 15, result has 77.6 percent of original size 52 [2021-11-19 14:41:05,518 INFO L180 QuantifierPusher]: treesize reduction 22, result has 92.6 percent of original size [2021-11-19 14:41:05,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-19 14:41:05,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,624 INFO L180 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size [2021-11-19 14:41:05,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 14:41:05,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 14:41:05,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,648 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-19 14:41:05,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 14:41:05,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,664 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-11-19 14:41:05,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,687 INFO L180 QuantifierPusher]: treesize reduction 24, result has 73.6 percent of original size [2021-11-19 14:41:05,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,694 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:05,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:05,700 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:05,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:05,710 INFO L180 QuantifierPusher]: treesize reduction 24, result has 75.5 percent of original size [2021-11-19 14:41:05,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-19 14:41:05,722 INFO L180 QuantifierPusher]: treesize reduction 24, result has 73.6 percent of original size [2021-11-19 14:41:05,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:05,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:05,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:05,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:05,750 INFO L180 QuantifierPusher]: treesize reduction 24, result has 75.5 percent of original size [2021-11-19 14:41:05,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-11-19 14:41:05,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,771 INFO L180 QuantifierPusher]: treesize reduction 18, result has 71.9 percent of original size [2021-11-19 14:41:05,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 14:41:05,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:05,870 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.0 percent of original size [2021-11-19 14:41:05,875 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:41:05,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:41:05,889 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,897 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-19 14:41:05,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:05,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-11-19 14:41:05,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:41:05,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 14:41:05,916 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,919 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,923 INFO L185 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-11-19 14:41:05,924 INFO L185 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-11-19 14:41:05,927 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:05,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-19 14:41:05,933 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:41:05,939 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:05,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-19 14:41:05,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,958 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,963 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,966 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:05,967 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,970 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:05,974 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.2 percent of original size 153 [2021-11-19 14:41:05,978 INFO L185 QuantifierPusher]: treesize reduction 6, result has 96.2 percent of original size 153 [2021-11-19 14:41:05,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,991 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:05,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:05,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:41:05,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 14:41:05,996 INFO L185 QuantifierPusher]: treesize reduction 27, result has 71.0 percent of original size 66 [2021-11-19 14:41:05,998 INFO L185 QuantifierPusher]: treesize reduction 27, result has 71.0 percent of original size 66 [2021-11-19 14:41:06,003 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:06,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-19 14:41:06,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,046 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:06,047 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,063 INFO L185 QuantifierPusher]: treesize reduction 15, result has 89.1 percent of original size 123 [2021-11-19 14:41:06,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,067 INFO L180 QuantifierPusher]: treesize reduction 15, result has 89.5 percent of original size [2021-11-19 14:41:06,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,072 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,075 INFO L185 QuantifierPusher]: treesize reduction 3, result has 93.8 percent of original size 45 [2021-11-19 14:41:06,079 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.7 percent of original size 108 [2021-11-19 14:41:06,082 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.7 percent of original size 108 [2021-11-19 14:41:06,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-11-19 14:41:06,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 14:41:06,098 INFO L185 QuantifierPusher]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-11-19 14:41:06,099 INFO L185 QuantifierPusher]: treesize reduction 12, result has 84.6 percent of original size 66 [2021-11-19 14:41:06,105 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.7 percent of original size [2021-11-19 14:41:06,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-19 14:41:06,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,171 INFO L180 QuantifierPusher]: treesize reduction 18, result has 78.0 percent of original size [2021-11-19 14:41:06,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:06,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-19 14:41:06,179 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:41:06,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:41:06,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-19 14:41:06,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-19 14:41:06,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:41:06,199 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 21 for LOIs [2021-11-19 14:41:06,204 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:41:07,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:41:07,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:41:07,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2021-11-19 14:41:07,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053050453] [2021-11-19 14:41:07,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:41:07,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:41:07,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:41:07,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:41:07,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:41:07,067 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:41:07,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:41:07,131 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-19 14:41:07,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:41:07,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-11-19 14:41:07,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:41:07,132 INFO L225 Difference]: With dead ends: 31 [2021-11-19 14:41:07,132 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:41:07,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-19 14:41:07,134 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:41:07,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:41:07,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:41:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:41:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:41:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:41:07,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-11-19 14:41:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:41:07,136 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:41:07,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:41:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:41:07,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:41:07,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:41:07,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:41:07,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-11-19 14:41:07,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:41:07,416 INFO L858 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-11-19 14:41:07,416 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:41:07,417 INFO L861 garLoopResultBuilder]: At program point L44(lines 25 45) the Hoare annotation is: true [2021-11-19 14:41:07,417 INFO L858 garLoopResultBuilder]: For program point L42(lines 38 43) no Hoare annotation was computed. [2021-11-19 14:41:07,417 INFO L854 garLoopResultBuilder]: At program point L38-2(lines 38 43) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~glob2_p_off~0#1|) (<= |ULTIMATE.start_main_~glob2_pathlim_off~0#1| |ULTIMATE.start_main_~MAXPATHLEN~0#1|)) [2021-11-19 14:41:07,417 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:41:07,417 INFO L854 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~glob2_p_off~0#1|) (<= |ULTIMATE.start_main_~glob2_pathlim_off~0#1| |ULTIMATE.start_main_~MAXPATHLEN~0#1|) (<= |ULTIMATE.start_main_~glob2_p_off~0#1| |ULTIMATE.start_main_~MAXPATHLEN~0#1|)) [2021-11-19 14:41:07,418 INFO L854 garLoopResultBuilder]: At program point L41-1(line 41) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~glob2_p_off~0#1|) (<= |ULTIMATE.start_main_~glob2_pathlim_off~0#1| |ULTIMATE.start_main_~MAXPATHLEN~0#1|) (<= |ULTIMATE.start_main_~glob2_p_off~0#1| |ULTIMATE.start_main_~MAXPATHLEN~0#1|)) [2021-11-19 14:41:07,418 INFO L858 garLoopResultBuilder]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2021-11-19 14:41:07,419 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-11-19 14:41:07,419 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2021-11-19 14:41:07,420 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-11-19 14:41:07,420 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-11-19 14:41:07,420 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-11-19 14:41:07,423 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-11-19 14:41:07,425 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:41:07,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:41:07 BoogieIcfgContainer [2021-11-19 14:41:07,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:41:07,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:41:07,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:41:07,446 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:41:07,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:40:58" (3/4) ... [2021-11-19 14:41:07,449 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:41:07,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-19 14:41:07,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-19 14:41:07,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-19 14:41:07,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 14:41:07,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:41:07,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:41:07,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:41:07,507 INFO L158 Benchmark]: Toolchain (without parser) took 9263.39ms. Allocated memory was 81.8MB in the beginning and 213.9MB in the end (delta: 132.1MB). Free memory was 45.3MB in the beginning and 114.5MB in the end (delta: -69.2MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,508 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:41:07,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 74.3MB in the end (delta: -29.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.21ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:41:07,508 INFO L158 Benchmark]: Boogie Preprocessor took 19.97ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 71.8MB in the end (delta: 992.6kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,508 INFO L158 Benchmark]: RCFGBuilder took 262.81ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 62.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,509 INFO L158 Benchmark]: TraceAbstraction took 8622.57ms. Allocated memory was 98.6MB in the beginning and 213.9MB in the end (delta: 115.3MB). Free memory was 61.9MB in the beginning and 117.6MB in the end (delta: -55.7MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,509 INFO L158 Benchmark]: Witness Printer took 61.67ms. Allocated memory is still 213.9MB. Free memory was 117.6MB in the beginning and 114.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:41:07,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.56ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.1MB in the beginning and 74.3MB in the end (delta: -29.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.21ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.97ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 71.8MB in the end (delta: 992.6kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 262.81ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 62.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8622.57ms. Allocated memory was 98.6MB in the beginning and 213.9MB in the end (delta: 115.3MB). Free memory was 61.9MB in the beginning and 117.6MB in the end (delta: -55.7MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 61.67ms. Allocated memory is still 213.9MB. Free memory was 117.6MB in the beginning and 114.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 37 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 12 PreInvPairs, 23 NumberOfFragments, 29 HoareAnnotationTreeSize, 12 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 102 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 139 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 9 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 224/245 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 <= glob2_p_off && glob2_pathlim_off <= MAXPATHLEN RESULT: Ultimate proved your program to be correct! [2021-11-19 14:41:07,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654437ca-83e4-4ec6-a652-4cf5346010e2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE