./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8 --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 6dcb150490c6daa5a1cdb1426c8815f073186f609bef3d7e722a6c72be49ca91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:18:42,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:18:42,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:18:42,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:18:42,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:18:42,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:18:42,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:18:42,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:18:42,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:18:42,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:18:42,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:18:42,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:18:42,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:18:42,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:18:42,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:18:42,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:18:42,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:18:42,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:18:42,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:18:42,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:18:42,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:18:42,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:18:42,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:18:42,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:18:42,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:18:42,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:18:42,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:18:42,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:18:42,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:18:42,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:18:42,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:18:42,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:18:42,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:18:42,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:18:42,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:18:42,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:18:42,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:18:42,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:18:42,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:18:42,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:18:42,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:18:42,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:18:42,974 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:18:42,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:18:42,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:18:42,978 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:18:42,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:18:42,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:18:42,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:18:42,980 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:18:42,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:18:42,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:18:42,982 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:18:42,982 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:18:42,983 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:18:42,983 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:18:42,983 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:18:42,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:18:42,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:18:42,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:18:42,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:18:42,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:18:42,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:18:42,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:18:42,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:18:42,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:18:42,987 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:18:42,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:18:42,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:18:42,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:18:42,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:18:42,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:18:42,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:42,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:18:42,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:18:42,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:18:42,993 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:18:42,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:18:42,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:18:42,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:18:42,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:18:42,994 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_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dcb150490c6daa5a1cdb1426c8815f073186f609bef3d7e722a6c72be49ca91 [2021-11-07 01:18:43,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:18:43,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:18:43,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:18:43,352 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:18:43,353 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:18:43,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i [2021-11-07 01:18:43,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/data/ed0683d86/a0011fdb51c2488bb756de1bf9c11374/FLAG3f463ce43 [2021-11-07 01:18:44,004 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:18:44,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i [2021-11-07 01:18:44,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/data/ed0683d86/a0011fdb51c2488bb756de1bf9c11374/FLAG3f463ce43 [2021-11-07 01:18:44,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/data/ed0683d86/a0011fdb51c2488bb756de1bf9c11374 [2021-11-07 01:18:44,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:18:44,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:18:44,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:44,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:18:44,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:18:44,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3848d3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44, skipping insertion in model container [2021-11-07 01:18:44,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:18:44,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:18:44,622 WARN L228 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_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i[919,932] [2021-11-07 01:18:44,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:44,671 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:18:44,689 WARN L228 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_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/sv-benchmarks/c/loop-crafted/simple_array_index_value_2.i[919,932] [2021-11-07 01:18:44,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:44,734 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:18:44,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44 WrapperNode [2021-11-07 01:18:44,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:44,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:18:44,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:18:44,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:18:44,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:18:44,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:18:44,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:18:44,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:18:44,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:18:44,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:18:44,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:18:44,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:18:44,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:44,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:44,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:18:44,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:18:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:18:44,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:18:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:18:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:18:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:18:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:18:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:18:45,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:18:45,316 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 01:18:45,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:18:45 BoogieIcfgContainer [2021-11-07 01:18:45,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:18:45,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:18:45,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:18:45,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:18:45,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:18:44" (1/3) ... [2021-11-07 01:18:45,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fb9a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:18:45, skipping insertion in model container [2021-11-07 01:18:45,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44" (2/3) ... [2021-11-07 01:18:45,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fb9a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:18:45, skipping insertion in model container [2021-11-07 01:18:45,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:18:45" (3/3) ... [2021-11-07 01:18:45,329 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2021-11-07 01:18:45,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:18:45,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:18:45,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:18:45,457 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 [2021-11-07 01:18:45,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:18:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-11-07 01:18:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 01:18:45,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:45,496 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 01:18:45,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:45,504 INFO L85 PathProgramCache]: Analyzing trace with hash 80317626, now seen corresponding path program 1 times [2021-11-07 01:18:45,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:45,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383364263] [2021-11-07 01:18:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:45,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:45,677 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:45,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383364263] [2021-11-07 01:18:45,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383364263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:18:45,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:18:45,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:18:45,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615153237] [2021-11-07 01:18:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:18:45,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:18:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:18:45,701 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-07 01:18:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:45,735 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2021-11-07 01:18:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:18:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 01:18:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:45,743 INFO L225 Difference]: With dead ends: 20 [2021-11-07 01:18:45,743 INFO L226 Difference]: Without dead ends: 13 [2021-11-07 01:18:45,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:18:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-07 01:18:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2021-11-07 01:18:45,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-07 01:18:45,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2021-11-07 01:18:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:45,769 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-07 01:18:45,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-07 01:18:45,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-07 01:18:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:18:45,770 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:45,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:18:45,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:18:45,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:45,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1801489297, now seen corresponding path program 1 times [2021-11-07 01:18:45,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:45,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025509387] [2021-11-07 01:18:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:45,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:45,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:45,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025509387] [2021-11-07 01:18:45,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025509387] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:45,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503040656] [2021-11-07 01:18:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:45,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:45,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:45,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:45,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:18:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:45,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:18:45,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:46,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-07 01:18:46,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-07 01:18:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:46,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:46,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2021-11-07 01:18:46,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2021-11-07 01:18:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:46,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503040656] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:18:46,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1842662504] [2021-11-07 01:18:46,605 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-07 01:18:46,606 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:18:46,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:18:46,619 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:18:46,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:18:46,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:18:46,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:18:46,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:18:46,678 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_12|], 21=[|v_#valid_27|]} [2021-11-07 01:18:46,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:18:46,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:46,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:46,698 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:46,726 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:18:46,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:46,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:46,758 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:46,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:18:46,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,788 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:18:46,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,816 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:46,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:46,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:18:46,836 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:46,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:18:46,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-07 01:18:46,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:46,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:46,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:46,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:46,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,916 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:46,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,919 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,933 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:46,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,936 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,946 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:46,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:46,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:46,952 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:46,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:46,999 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,003 INFO L180 QuantifierPusher]: treesize reduction 9, result has 93.8 percent of original size [2021-11-07 01:18:47,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:18:47,010 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,012 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:599, output treesize:135 [2021-11-07 01:18:47,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:18:47,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,206 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,210 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:47,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:18:47,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-07 01:18:47,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-07 01:18:47,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:47,261 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:18:47,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:18:47,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-07 01:18:47,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-07 01:18:47,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 01:18:47,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-11-07 01:18:47,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,406 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,415 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:47,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:47,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:47,459 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:47,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:47,470 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,491 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,512 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,526 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,529 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,545 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,552 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:47,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2021-11-07 01:18:47,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:18:47,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:18:47,590 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,639 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,665 INFO L180 QuantifierPusher]: treesize reduction 90, result has 77.9 percent of original size [2021-11-07 01:18:47,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:18:47,673 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:18:47,674 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1669, output treesize:317 [2021-11-07 01:18:47,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,759 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:18:47,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:18:47,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:47,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:18:47,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:18:47,787 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:18:47,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:47,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:47,809 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,836 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,838 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,844 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:47,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:47,849 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:47,852 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:47,855 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:18:47,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:18:47,857 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:47,857 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:18:47,863 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:18:47,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:18:47,872 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:18:48,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:18:48,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:18:48,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 8 [2021-11-07 01:18:48,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108034192] [2021-11-07 01:18:48,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:18:48,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:18:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:18:48,177 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:48,356 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-11-07 01:18:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:18:48,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 01:18:48,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:48,358 INFO L225 Difference]: With dead ends: 22 [2021-11-07 01:18:48,358 INFO L226 Difference]: Without dead ends: 17 [2021-11-07 01:18:48,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:18:48,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-07 01:18:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 11. [2021-11-07 01:18:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-11-07 01:18:48,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-07 01:18:48,364 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2021-11-07 01:18:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:48,364 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-07 01:18:48,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-07 01:18:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:18:48,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:48,365 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-07 01:18:48,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:48,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:48,584 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash -960614693, now seen corresponding path program 1 times [2021-11-07 01:18:48,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:48,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592638118] [2021-11-07 01:18:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:48,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:18:48,693 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:48,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592638118] [2021-11-07 01:18:48,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592638118] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:48,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528454974] [2021-11-07 01:18:48,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:48,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:48,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:48,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:48,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:18:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:48,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-07 01:18:48,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:48,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2021-11-07 01:18:49,709 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-07 01:18:49,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 77 [2021-11-07 01:18:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:49,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:49,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2021-11-07 01:18:49,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2021-11-07 01:18:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:50,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528454974] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:18:50,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602609961] [2021-11-07 01:18:50,083 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:18:50,083 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:18:50,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:18:50,084 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:18:50,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:18:50,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,092 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:18:50,094 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:18:50,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:18:50,100 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_28|]} [2021-11-07 01:18:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:18:50,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:50,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:50,114 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,119 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:18:50,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:50,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:50,146 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:18:50,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,156 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:18:50,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,163 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:18:50,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-07 01:18:50,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-07 01:18:50,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:18:50,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:18:50,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,200 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,202 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 01:18:50,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,213 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:242, output treesize:116 [2021-11-07 01:18:50,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,286 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-07 01:18:50,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,308 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:50,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:18:50,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 01:18:50,322 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-07 01:18:50,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,334 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 01:18:50,337 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:50,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-07 01:18:50,341 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-07 01:18:50,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:18:50,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-11-07 01:18:50,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-11-07 01:18:50,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,401 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,403 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:50,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,428 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:50,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:50,429 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:50,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-07 01:18:50,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:18:50,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:18:50,461 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,484 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,486 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,497 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,499 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,509 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,511 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,523 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,525 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,554 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,572 INFO L180 QuantifierPusher]: treesize reduction 90, result has 76.8 percent of original size [2021-11-07 01:18:50,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-07 01:18:50,577 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:18:50,581 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1593, output treesize:298 [2021-11-07 01:18:50,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,663 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:18:50,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:18:50,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:50,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:18:50,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:18:50,683 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,685 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,692 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,695 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,709 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:50,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,710 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:50,711 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:18:50,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:50,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:50,723 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,729 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:18:50,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:18:50,731 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:50,732 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:18:50,737 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:18:50,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:18:50,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:18:50,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-07 01:18:50,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,812 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:50,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:50,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:50,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:18:50,837 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:50,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:50,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:50,876 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:18:51,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:18:51,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:18:51,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 13 [2021-11-07 01:18:51,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586036846] [2021-11-07 01:18:51,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:18:51,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:18:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:18:51,438 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:52,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:52,042 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-11-07 01:18:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:18:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:18:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:52,046 INFO L225 Difference]: With dead ends: 28 [2021-11-07 01:18:52,046 INFO L226 Difference]: Without dead ends: 21 [2021-11-07 01:18:52,046 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:18:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-07 01:18:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-11-07 01:18:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2021-11-07 01:18:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-07 01:18:52,052 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2021-11-07 01:18:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:52,052 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-07 01:18:52,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-07 01:18:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:18:52,053 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:52,054 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2021-11-07 01:18:52,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:52,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 01:18:52,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1837017711, now seen corresponding path program 2 times [2021-11-07 01:18:52,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:52,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615152904] [2021-11-07 01:18:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:52,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:18:52,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:52,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615152904] [2021-11-07 01:18:52,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615152904] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:52,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320869591] [2021-11-07 01:18:52,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:18:52,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:52,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:52,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:18:52,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:18:52,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:18:52,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:18:52,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:52,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-07 01:18:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:18:52,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:53,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2021-11-07 01:18:53,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2021-11-07 01:18:53,180 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:53,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320869591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:18:53,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [456021380] [2021-11-07 01:18:53,183 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:18:53,183 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:18:53,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:18:53,183 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:18:53,184 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:18:53,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:18:53,195 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:18:53,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:18:53,202 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 21=[|v_#valid_29|]} [2021-11-07 01:18:53,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:18:53,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:53,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:53,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:18:53,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:53,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:53,250 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:18:53,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,259 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:18:53,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,270 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:53,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:53,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:18:53,275 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:18:53,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-07 01:18:53,301 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:53,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:53,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:53,325 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,333 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,335 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,342 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,344 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,352 INFO L180 QuantifierPusher]: treesize reduction 9, result has 93.8 percent of original size [2021-11-07 01:18:53,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:18:53,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,355 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:599, output treesize:135 [2021-11-07 01:18:53,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:18:53,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,444 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:18:53,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:53,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:18:53,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-07 01:18:53,464 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:53,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:18:53,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-07 01:18:53,475 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-07 01:18:53,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-07 01:18:53,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 01:18:53,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-11-07 01:18:53,517 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,519 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,537 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,547 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,549 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,559 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,561 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,573 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:53,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:53,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:53,595 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,604 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,610 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:53,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2021-11-07 01:18:53,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:18:53,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:18:53,641 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,667 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,676 INFO L180 QuantifierPusher]: treesize reduction 90, result has 77.9 percent of original size [2021-11-07 01:18:53,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:18:53,681 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:18:53,681 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1669, output treesize:317 [2021-11-07 01:18:53,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,724 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:18:53,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:18:53,729 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:53,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:18:53,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:18:53,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:18:53,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:53,745 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:53,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,751 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,759 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,766 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,771 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,773 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,778 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:53,778 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:53,779 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,783 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:18:53,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:18:53,785 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:53,785 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:18:53,789 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:18:53,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:18:53,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 01:18:53,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:18:53,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,852 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:53,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:53,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:53,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:18:53,868 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:53,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:53,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:53,898 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:18:54,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:18:54,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:18:54,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 9] total 14 [2021-11-07 01:18:54,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162524820] [2021-11-07 01:18:54,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:18:54,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:54,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:18:54,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:18:54,430 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 states have internal predecessors, (25), 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) [2021-11-07 01:18:55,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:55,097 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2021-11-07 01:18:55,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:18:55,098 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 01:18:55,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:55,100 INFO L225 Difference]: With dead ends: 71 [2021-11-07 01:18:55,100 INFO L226 Difference]: Without dead ends: 61 [2021-11-07 01:18:55,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:18:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-07 01:18:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 23. [2021-11-07 01:18:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 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) [2021-11-07 01:18:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-11-07 01:18:55,114 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2021-11-07 01:18:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:55,114 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-11-07 01:18:55,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 14 states have internal predecessors, (25), 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) [2021-11-07 01:18:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-11-07 01:18:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:18:55,116 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:55,116 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1] [2021-11-07 01:18:55,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:55,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-07 01:18:55,331 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:55,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1566651355, now seen corresponding path program 3 times [2021-11-07 01:18:55,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:55,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787419552] [2021-11-07 01:18:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:55,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:18:55,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:55,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787419552] [2021-11-07 01:18:55,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787419552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:55,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108861440] [2021-11-07 01:18:55,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:18:55,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:55,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:55,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:55,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:18:55,771 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:18:55,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:18:55,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:18:55,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:18:55,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:18:55,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108861440] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:18:55,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898205412] [2021-11-07 01:18:55,968 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:18:55,969 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:18:55,969 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:18:55,969 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:18:55,969 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:18:55,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:55,980 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:55,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:55,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:18:55,982 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:55,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:55,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:18:55,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:18:55,987 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_30|]} [2021-11-07 01:18:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:55,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:18:56,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:56,002 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:56,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:18:56,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:56,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:56,032 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,035 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:18:56,039 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,039 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:18:56,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:18:56,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-07 01:18:56,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-07 01:18:56,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:18:56,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:18:56,071 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,084 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,089 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 01:18:56,093 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,093 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:242, output treesize:116 [2021-11-07 01:18:56,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-07 01:18:56,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,168 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:18:56,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:18:56,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 01:18:56,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-07 01:18:56,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,188 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 01:18:56,190 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:18:56,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-07 01:18:56,195 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-07 01:18:56,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:18:56,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-11-07 01:18:56,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-11-07 01:18:56,242 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,244 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,253 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,255 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,265 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,267 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,276 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,278 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,289 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,289 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:18:56,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:56,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:18:56,311 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,320 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,322 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:56,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-07 01:18:56,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:18:56,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:18:56,345 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,376 INFO L180 QuantifierPusher]: treesize reduction 90, result has 76.8 percent of original size [2021-11-07 01:18:56,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-07 01:18:56,381 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:18:56,381 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1593, output treesize:298 [2021-11-07 01:18:56,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,433 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:18:56,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:18:56,436 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:56,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:18:56,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:18:56,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,453 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,459 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,461 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:18:56,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:56,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:18:56,477 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,481 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:56,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:56,484 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,488 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:18:56,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:18:56,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:56,490 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:18:56,494 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:18:56,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:18:56,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:18:56,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-07 01:18:56,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,538 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:56,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:56,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:56,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:18:56,558 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:18:56,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:18:56,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:56,591 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:18:57,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:18:57,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:18:57,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-07 01:18:57,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473804554] [2021-11-07 01:18:57,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:18:57,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:57,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:18:57,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:18:57,049 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-07 01:18:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:57,514 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-11-07 01:18:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:18:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 01:18:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:57,516 INFO L225 Difference]: With dead ends: 72 [2021-11-07 01:18:57,516 INFO L226 Difference]: Without dead ends: 59 [2021-11-07 01:18:57,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:18:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-07 01:18:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 22. [2021-11-07 01:18:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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) [2021-11-07 01:18:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-07 01:18:57,527 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 18 [2021-11-07 01:18:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:57,527 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-07 01:18:57,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-07 01:18:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-07 01:18:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:18:57,528 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:57,529 INFO L513 BasicCegarLoop]: trace histogram [10, 3, 2, 2, 1, 1, 1, 1] [2021-11-07 01:18:57,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:57,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:57,756 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1433161158, now seen corresponding path program 4 times [2021-11-07 01:18:57,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:57,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090045467] [2021-11-07 01:18:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:57,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:18:57,948 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:57,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090045467] [2021-11-07 01:18:57,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090045467] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:57,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43163994] [2021-11-07 01:18:57,949 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:18:57,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:57,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:57,951 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:57,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 01:18:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:58,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-07 01:18:58,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:58,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2021-11-07 01:18:58,477 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:18:58,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:18:59,265 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:18:59,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:00,120 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:19:00,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:00,990 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:19:00,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:01,885 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:19:01,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:02,575 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:19:02,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:03,384 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:19:03,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:19:04,861 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-07 01:19:04,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 77 [2021-11-07 01:19:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:19:04,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:20:06,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2021-11-07 01:20:06,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2021-11-07 01:20:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:20:07,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43163994] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:20:07,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1603104879] [2021-11-07 01:20:07,045 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:20:07,045 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:20:07,045 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:20:07,046 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:20:07,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:20:07,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:20:07,055 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:20:07,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:20:07,060 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 21=[|v_#valid_31|]} [2021-11-07 01:20:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:20:07,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:07,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:07,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:20:07,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:07,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:07,099 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:20:07,105 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,106 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:20:07,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,112 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-07 01:20:07,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-11-07 01:20:07,127 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-07 01:20:07,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:20:07,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 01:20:07,143 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 01:20:07,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,152 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:242, output treesize:116 [2021-11-07 01:20:07,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-07 01:20:07,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-11-07 01:20:07,243 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:20:07,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-07 01:20:07,247 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-07 01:20:07,254 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:20:07,259 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:20:07,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-07 01:20:07,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-07 01:20:07,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-11-07 01:20:07,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-11-07 01:20:07,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-11-07 01:20:07,300 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,302 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,312 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,314 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:20:07,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:07,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:07,339 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,349 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,352 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,361 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,363 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,372 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,375 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:07,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-11-07 01:20:07,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:20:07,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-07 01:20:07,403 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,414 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,414 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,437 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,448 INFO L180 QuantifierPusher]: treesize reduction 90, result has 76.8 percent of original size [2021-11-07 01:20:07,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-11-07 01:20:07,453 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:20:07,453 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1593, output treesize:298 [2021-11-07 01:20:07,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,535 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:20:07,537 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:20:07,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:07,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:20:07,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:20:07,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,552 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,553 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,558 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,560 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,566 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:07,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:07,575 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:20:07,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:07,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:07,583 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,588 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:20:07,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:20:07,590 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:07,590 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:20:07,594 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:20:07,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:20:07,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 01:20:07,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:20:07,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,692 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:07,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:07,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:07,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:20:07,708 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:07,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:07,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:07,740 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:20:08,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:20:08,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:20:08,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 24 [2021-11-07 01:20:08,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824565259] [2021-11-07 01:20:08,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 01:20:08,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:08,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 01:20:08,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=772, Unknown=1, NotChecked=0, Total=870 [2021-11-07 01:20:08,311 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 25 states, 25 states have (on average 1.64) internal successors, (41), 24 states have internal predecessors, (41), 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) [2021-11-07 01:20:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:10,363 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2021-11-07 01:20:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 01:20:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 24 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 01:20:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:10,365 INFO L225 Difference]: With dead ends: 77 [2021-11-07 01:20:10,365 INFO L226 Difference]: Without dead ends: 67 [2021-11-07 01:20:10,367 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 29 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 63.5s TimeCoverageRelationStatistics Valid=174, Invalid=1385, Unknown=1, NotChecked=0, Total=1560 [2021-11-07 01:20:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-07 01:20:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 26. [2021-11-07 01:20:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 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) [2021-11-07 01:20:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-07 01:20:10,379 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2021-11-07 01:20:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:10,379 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-07 01:20:10,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 24 states have internal predecessors, (41), 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) [2021-11-07 01:20:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-07 01:20:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:20:10,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:10,381 INFO L513 BasicCegarLoop]: trace histogram [11, 4, 3, 3, 1, 1, 1, 1] [2021-11-07 01:20:10,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:20:10,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-11-07 01:20:10,595 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:20:10,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:10,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1976000038, now seen corresponding path program 5 times [2021-11-07 01:20:10,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:10,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754642084] [2021-11-07 01:20:10,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:10,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:20:10,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:10,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754642084] [2021-11-07 01:20:10,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754642084] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:20:10,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958906969] [2021-11-07 01:20:10,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:20:10,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:20:10,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:20:10,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:20:10,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 01:20:14,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-07 01:20:14,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:20:14,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-07 01:20:14,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:20:15,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2021-11-07 01:20:15,290 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:15,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:15,913 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:15,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:16,559 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:16,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:17,186 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:17,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:17,771 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:17,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:18,258 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:18,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:18,836 INFO L354 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2021-11-07 01:20:18,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 123 [2021-11-07 01:20:20,486 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-07 01:20:20,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 77 [2021-11-07 01:20:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:20:20,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:20:25,073 WARN L838 $PredicateComparison]: unable to prove that (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse0) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse0 0)))) is different from false [2021-11-07 01:20:26,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 70 [2021-11-07 01:20:26,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 132 [2021-11-07 01:20:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 21 trivial. 35 not checked. [2021-11-07 01:20:26,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958906969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:20:26,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [763257568] [2021-11-07 01:20:26,479 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:20:26,479 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:20:26,480 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:20:26,480 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:20:26,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:20:26,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,484 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:20:26,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:20:26,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:20:26,489 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 21=[|v_#valid_32|]} [2021-11-07 01:20:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:20:26,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:26,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:26,502 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,506 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:20:26,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:26,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:26,528 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,532 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:20:26,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,535 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:20:26,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:20:26,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:20:26,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:20:26,545 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:20:26,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-07 01:20:26,557 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:20:26,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:26,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:26,579 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,586 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,587 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,593 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,595 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,600 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,602 INFO L180 QuantifierPusher]: treesize reduction 9, result has 93.8 percent of original size [2021-11-07 01:20:26,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:20:26,604 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,604 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:599, output treesize:135 [2021-11-07 01:20:26,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,653 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:20:26,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,665 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,666 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:20:26,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:20:26,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:20:26,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 01:20:26,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:20:26,675 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,675 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:20:26,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:20:26,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:20:26,680 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-07 01:20:26,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 01:20:26,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-11-07 01:20:26,715 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,717 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:20:26,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:26,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:26,739 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:26,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2021-11-07 01:20:26,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:20:26,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:20:26,771 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,781 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,784 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,797 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,820 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,822 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,831 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,833 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,841 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,843 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,874 INFO L180 QuantifierPusher]: treesize reduction 90, result has 77.9 percent of original size [2021-11-07 01:20:26,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:20:26,879 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:20:26,879 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1669, output treesize:317 [2021-11-07 01:20:26,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,916 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:20:26,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:20:26,919 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:26,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:20:26,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:20:26,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,930 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,930 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,935 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,937 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,946 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:26,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:26,948 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:20:26,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:26,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:26,954 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,958 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:20:26,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:20:26,959 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:26,959 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:20:26,966 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:20:26,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:20:26,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 01:20:26,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:26,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-07 01:20:26,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:26,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,014 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:27,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:27,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:27,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:20:27,026 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:27,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:27,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:27,048 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:20:27,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:20:27,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:20:27,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 13] total 30 [2021-11-07 01:20:27,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494755952] [2021-11-07 01:20:27,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-07 01:20:27,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-07 01:20:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1072, Unknown=3, NotChecked=66, Total=1260 [2021-11-07 01:20:27,639 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 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) [2021-11-07 01:20:32,239 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= c_ULTIMATE.start_main_~index~0 4) (<= 4 c_ULTIMATE.start_main_~index~0)) is different from false [2021-11-07 01:20:34,246 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= c_ULTIMATE.start_main_~index~0 5) (<= 5 c_ULTIMATE.start_main_~index~0)) is different from false [2021-11-07 01:20:36,254 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= 6 c_ULTIMATE.start_main_~index~0) (<= c_ULTIMATE.start_main_~index~0 6)) is different from false [2021-11-07 01:20:38,261 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= 7 c_ULTIMATE.start_main_~index~0) (<= c_ULTIMATE.start_main_~index~0 7)) is different from false [2021-11-07 01:20:40,268 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= c_ULTIMATE.start_main_~index~0 8) (<= 8 c_ULTIMATE.start_main_~index~0)) is different from false [2021-11-07 01:20:42,277 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (<= c_ULTIMATE.start_main_~index~0 9) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= 9 c_ULTIMATE.start_main_~index~0)) is different from false [2021-11-07 01:20:44,286 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0)))) (<= 10 c_ULTIMATE.start_main_~index~0) (<= c_ULTIMATE.start_main_~index~0 10)) is different from false [2021-11-07 01:20:46,295 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (+ (div c_ULTIMATE.start_main_~index~0 4294967296) 1)) (<= c_ULTIMATE.start_main_~index~0 11) (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0))))) is different from false [2021-11-07 01:20:48,304 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((aux_div_ULTIMATE.start_main_~tmp~0_43 Int) (aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int) (aux_div_v_ULTIMATE.start_main_~index~0_130_51 Int) (aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 Int)) (let ((.cse4 (* 4294967296 aux_div_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|))) (.cse0 (* 4294967296 aux_div_ULTIMATE.start_main_~tmp~0_43)) (.cse2 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse4)) (.cse3 (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 (* 4294967296 aux_div_v_ULTIMATE.start_main_~index~0_130_51) .cse4))) (and (<= 0 aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62) (< (+ aux_mod_aux_mod_v_ULTIMATE.start_main_~index~0_130_51_62 .cse0) .cse1) (<= 0 .cse2) (< .cse1 (+ 4294967296 .cse0)) (< .cse2 10000) (<= .cse3 3) (<= 3 .cse3))))) (forall ((aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int) (aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 Int) (aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 Int)) (let ((.cse5 (+ (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~index~0_45_56) aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56))) (or (< aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 0) (<= 10000 aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56) (<= 4294967296 aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48) (<= aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48 .cse5) (< 3 (mod (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|) (+ (* (mod aux_mod_aux_mod_ULTIMATE.start_main_~index~0_45_56 4294967296) 4) |c_ULTIMATE.start_main_~#array~0.offset|) (+ (* aux_div_v_ULTIMATE.start_main_~tmp~0_37_48 4294967296) aux_mod_v_ULTIMATE.start_main_~tmp~0_37_48)) (+ 12 |c_ULTIMATE.start_main_~#array~0.offset|)) 4294967296)) (< .cse5 0))))) is different from false [2021-11-07 01:20:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:20:49,535 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2021-11-07 01:20:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-07 01:20:49,536 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 01:20:49,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:20:49,537 INFO L225 Difference]: With dead ends: 84 [2021-11-07 01:20:49,537 INFO L226 Difference]: Without dead ends: 71 [2021-11-07 01:20:49,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 43 SyntacticMatches, 9 SemanticMatches, 53 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=215, Invalid=1793, Unknown=12, NotChecked=950, Total=2970 [2021-11-07 01:20:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-07 01:20:49,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 30. [2021-11-07 01:20:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 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) [2021-11-07 01:20:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-11-07 01:20:49,557 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2021-11-07 01:20:49,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:20:49,557 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-11-07 01:20:49,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 30 states have internal predecessors, (50), 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) [2021-11-07 01:20:49,557 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-11-07 01:20:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:20:49,558 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:20:49,558 INFO L513 BasicCegarLoop]: trace histogram [12, 5, 4, 4, 1, 1, 1, 1] [2021-11-07 01:20:49,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:20:49,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:20:49,762 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:20:49,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:20:49,762 INFO L85 PathProgramCache]: Analyzing trace with hash 293866810, now seen corresponding path program 6 times [2021-11-07 01:20:49,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:20:49,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577969578] [2021-11-07 01:20:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:20:49,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:20:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:20:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:20:50,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:20:50,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577969578] [2021-11-07 01:20:50,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577969578] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:20:50,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673445478] [2021-11-07 01:20:50,067 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:20:50,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:20:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:20:50,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:20:50,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:20:50,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:20:50,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:20:50,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 01:20:50,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:20:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:20:50,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:20:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:20:50,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673445478] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:20:50,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2093557961] [2021-11-07 01:20:50,978 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:20:50,978 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:20:50,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:20:50,978 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:20:50,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:20:50,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:50,983 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:50,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:50,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:20:50,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:50,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:50,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:20:50,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:20:50,987 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 21=[|v_#valid_33|]} [2021-11-07 01:20:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:50,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:20:50,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:50,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:50,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:50,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:20:50,996 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:50,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,011 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:20:51,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:51,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:20:51,035 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,041 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:20:51,044 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,044 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:20:51,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,051 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:20:51,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:20:51,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:20:51,055 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:20:51,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-07 01:20:51,067 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,069 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:20:51,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:51,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:51,090 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,096 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,098 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,105 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,112 INFO L180 QuantifierPusher]: treesize reduction 9, result has 93.8 percent of original size [2021-11-07 01:20:51,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:20:51,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,114 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:599, output treesize:135 [2021-11-07 01:20:51,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,155 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:20:51,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:20:51,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:20:51,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 01:20:51,179 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-07 01:20:51,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,190 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:20:51,190 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:20:51,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-07 01:20:51,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-07 01:20:51,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-07 01:20:51,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 01:20:51,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-11-07 01:20:51,227 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,238 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,240 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:20:51,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:51,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:20:51,270 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,279 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,281 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,291 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,293 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,302 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,304 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,314 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,318 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:20:51,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2021-11-07 01:20:51,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:20:51,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:20:51,338 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,367 INFO L180 QuantifierPusher]: treesize reduction 90, result has 77.9 percent of original size [2021-11-07 01:20:51,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:20:51,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:20:51,372 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1669, output treesize:317 [2021-11-07 01:20:51,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,420 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:20:51,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:20:51,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:20:51,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:20:51,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:20:51,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:20:51,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:51,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:20:51,439 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,444 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,445 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,458 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,462 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:20:51,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:20:51,464 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,467 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:20:51,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:20:51,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:20:51,468 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:20:51,472 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:20:51,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:20:51,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:20:51,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-07 01:20:51,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,506 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:51,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:51,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:20:51,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:20:51,520 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:20:51,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:20:51,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:20:51,543 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:20:52,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:20:52,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:20:52,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2021-11-07 01:20:52,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490166319] [2021-11-07 01:20:52,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 01:20:52,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:20:52,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 01:20:52,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 01:20:52,075 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 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) [2021-11-07 01:21:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:21:03,299 INFO L93 Difference]: Finished difference Result 167 states and 182 transitions. [2021-11-07 01:21:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 01:21:03,300 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 01:21:03,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:21:03,301 INFO L225 Difference]: With dead ends: 167 [2021-11-07 01:21:03,301 INFO L226 Difference]: Without dead ends: 151 [2021-11-07 01:21:03,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=615, Invalid=1455, Unknown=0, NotChecked=0, Total=2070 [2021-11-07 01:21:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-07 01:21:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 44. [2021-11-07 01:21:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 43 states have internal predecessors, (45), 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) [2021-11-07 01:21:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-11-07 01:21:03,327 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 29 [2021-11-07 01:21:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:21:03,327 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-11-07 01:21:03,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 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) [2021-11-07 01:21:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-11-07 01:21:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 01:21:03,328 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:03,328 INFO L513 BasicCegarLoop]: trace histogram [26, 5, 4, 4, 1, 1, 1, 1] [2021-11-07 01:21:03,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:21:03,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:03,532 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:21:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2090507366, now seen corresponding path program 7 times [2021-11-07 01:21:03,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:21:03,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405790598] [2021-11-07 01:21:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:03,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:21:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:21:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:21:04,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:21:04,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405790598] [2021-11-07 01:21:04,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405790598] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:21:04,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956648380] [2021-11-07 01:21:04,130 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:21:04,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:21:04,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:04,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:21:04,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 01:23:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:23:55,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-07 01:23:55,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:23:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:23:55,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:23:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:23:56,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956648380] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:23:56,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1344706806] [2021-11-07 01:23:56,794 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-07 01:23:56,794 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:23:56,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:23:56,794 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:23:56,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:23:56,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:23:56,799 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:23:56,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-07 01:23:56,809 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_34|]} [2021-11-07 01:23:56,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:23:56,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:23:56,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:23:56,819 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:23:56,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:23:56,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:23:56,836 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:23:56,842 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,843 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:119, output treesize:94 [2021-11-07 01:23:56,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,867 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:23:56,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:23:56,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:23:56,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:23:56,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-07 01:23:56,887 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:56,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,888 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,890 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:56,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:23:56,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:23:56,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:23:56,905 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,910 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:56,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,911 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,917 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:56,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:56,918 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,923 INFO L180 QuantifierPusher]: treesize reduction 9, result has 93.8 percent of original size [2021-11-07 01:23:56,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:23:56,924 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:23:56,924 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:599, output treesize:135 [2021-11-07 01:23:56,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:56,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:23:56,973 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,978 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:23:56,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:23:56,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 01:23:56,981 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 01:23:56,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,985 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:23:56,986 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:23:56,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:23:56,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 01:23:56,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 339 [2021-11-07 01:23:56,992 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:56,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:56,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 01:23:56,999 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 368 [2021-11-07 01:23:57,015 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,017 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:57,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 01:23:57,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:23:57,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:23:57,039 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,049 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,050 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,058 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,059 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,065 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,066 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,079 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,081 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,088 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,090 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:57,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:57,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:23:57,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2021-11-07 01:23:57,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:23:57,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 01:23:57,109 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,136 INFO L180 QuantifierPusher]: treesize reduction 90, result has 77.9 percent of original size [2021-11-07 01:23:57,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-11-07 01:23:57,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:23:57,143 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 1 variables, input treesize:1669, output treesize:317 [2021-11-07 01:23:57,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,180 INFO L180 QuantifierPusher]: treesize reduction 30, result has 80.6 percent of original size [2021-11-07 01:23:57,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:57,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 01:23:57,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:23:57,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-07 01:23:57,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-11-07 01:23:57,192 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,194 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,199 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,201 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,205 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-07 01:23:57,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:23:57,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-07 01:23:57,214 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,218 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:23:57,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:23:57,220 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,223 INFO L180 QuantifierPusher]: treesize reduction 7, result has 91.1 percent of original size [2021-11-07 01:23:57,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:23:57,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:23:57,224 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:72 [2021-11-07 01:23:57,228 INFO L180 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-11-07 01:23:57,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:23:57,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-07 01:23:57,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-07 01:23:57,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,259 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:23:57,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:23:57,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:23:57,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-07 01:23:57,272 INFO L180 QuantifierPusher]: treesize reduction 30, result has 63.9 percent of original size [2021-11-07 01:23:57,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-07 01:23:57,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:23:57,313 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:23:58,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:23:58,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:23:58,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 56 [2021-11-07 01:23:58,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495771038] [2021-11-07 01:23:58,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-07 01:23:58,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:23:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-07 01:23:58,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=911, Invalid=2871, Unknown=0, NotChecked=0, Total=3782 [2021-11-07 01:23:58,045 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 57 states, 57 states have (on average 1.105263157894737) internal successors, (63), 56 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:42,531 INFO L93 Difference]: Finished difference Result 335 states and 364 transitions. [2021-11-07 01:27:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-07 01:27:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 1.105263157894737) internal successors, (63), 56 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-07 01:27:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:42,534 INFO L225 Difference]: With dead ends: 335 [2021-11-07 01:27:42,534 INFO L226 Difference]: Without dead ends: 319 [2021-11-07 01:27:42,537 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 223.5s TimeCoverageRelationStatistics Valid=2392, Invalid=5263, Unknown=1, NotChecked=0, Total=7656 [2021-11-07 01:27:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-07 01:27:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 72. [2021-11-07 01:27:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.028169014084507) internal successors, (73), 71 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2021-11-07 01:27:42,574 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 43 [2021-11-07 01:27:42,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:42,574 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2021-11-07 01:27:42,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.105263157894737) internal successors, (63), 56 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2021-11-07 01:27:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 01:27:42,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:42,577 INFO L513 BasicCegarLoop]: trace histogram [54, 5, 4, 4, 1, 1, 1, 1] [2021-11-07 01:27:42,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:27:42,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-11-07 01:27:42,791 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:27:42,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash 446306394, now seen corresponding path program 8 times [2021-11-07 01:27:42,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:27:42,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115488742] [2021-11-07 01:27:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:42,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:27:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1511 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 01:27:44,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:27:44,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115488742] [2021-11-07 01:27:44,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115488742] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:27:44,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401189937] [2021-11-07 01:27:44,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:27:44,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:27:44,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:27:44,784 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:27:44,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e9b4bd-1e26-401c-b1e3-cc8850e7202b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process