./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2f.c --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_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/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_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/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_af186b2d-08f2-411e-a60b-b836af908c54/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 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:38:11,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:38:11,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:38:11,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:38:11,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:38:11,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:38:11,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:38:11,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:38:11,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:38:11,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:38:11,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:38:11,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:38:11,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:38:11,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:38:11,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:38:11,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:38:11,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:38:11,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:38:11,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:38:11,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:38:11,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:38:11,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:38:11,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:38:11,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:38:11,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:38:11,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:38:11,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:38:11,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:38:11,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:38:11,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:38:11,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:38:11,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:38:11,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:38:11,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:38:11,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:38:11,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:38:11,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:38:11,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:38:11,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:38:11,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:38:11,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:38:11,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:38:12,008 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:38:12,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:38:12,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:38:12,011 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:38:12,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:38:12,011 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:38:12,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:38:12,012 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:38:12,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:38:12,020 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:38:12,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:38:12,022 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:38:12,022 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:38:12,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:38:12,023 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:38:12,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:38:12,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:38:12,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:38:12,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:38:12,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:38:12,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:38:12,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:38:12,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:38:12,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:38:12,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:38:12,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:38:12,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:38:12,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:38:12,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:38:12,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:38:12,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:38:12,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:38:12,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:38:12,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:38:12,031 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:38:12,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:38:12,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:38:12,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:38:12,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:38:12,032 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_af186b2d-08f2-411e-a60b-b836af908c54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 [2021-11-07 01:38:12,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:38:12,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:38:12,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:38:12,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:38:12,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:38:12,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-fpi/eqn2f.c [2021-11-07 01:38:12,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/data/aad4135af/aa7476b221ae49f3a084680910b50ece/FLAGe5c51f442 [2021-11-07 01:38:13,157 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:38:13,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/sv-benchmarks/c/array-fpi/eqn2f.c [2021-11-07 01:38:13,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/data/aad4135af/aa7476b221ae49f3a084680910b50ece/FLAGe5c51f442 [2021-11-07 01:38:13,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/data/aad4135af/aa7476b221ae49f3a084680910b50ece [2021-11-07 01:38:13,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:38:13,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:38:13,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:13,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:38:13,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:38:13,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:13,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58877aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13, skipping insertion in model container [2021-11-07 01:38:13,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:13,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:38:13,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:38:13,792 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_af186b2d-08f2-411e-a60b-b836af908c54/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-11-07 01:38:13,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:13,839 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:38:13,855 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_af186b2d-08f2-411e-a60b-b836af908c54/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-11-07 01:38:13,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:38:13,883 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:38:13,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13 WrapperNode [2021-11-07 01:38:13,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:38:13,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:38:13,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:38:13,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:38:13,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:13,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:13,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:38:13,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:38:13,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:38:13,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:38:13,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:13,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:38:14,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:38:14,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:38:14,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:38:14,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (1/1) ... [2021-11-07 01:38:14,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:38:14,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:14,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:38:14,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:38:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:38:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:38:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:38:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:38:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:38:14,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:38:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:38:14,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:38:14,652 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-07 01:38:14,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:38:14 BoogieIcfgContainer [2021-11-07 01:38:14,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:38:14,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:38:14,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:38:14,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:38:14,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:38:13" (1/3) ... [2021-11-07 01:38:14,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134e9d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:38:14, skipping insertion in model container [2021-11-07 01:38:14,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:38:13" (2/3) ... [2021-11-07 01:38:14,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134e9d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:38:14, skipping insertion in model container [2021-11-07 01:38:14,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:38:14" (3/3) ... [2021-11-07 01:38:14,666 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn2f.c [2021-11-07 01:38:14,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:38:14,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:38:14,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:38:14,756 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 01:38:14,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:38:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 01:38:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:38:14,793 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:14,794 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:14,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -735732333, now seen corresponding path program 1 times [2021-11-07 01:38:14,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:14,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447520562] [2021-11-07 01:38:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:14,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:15,024 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:15,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673114407] [2021-11-07 01:38:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:15,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:15,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:15,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:38:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:15,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:38:15,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:15,329 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:38:15,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:38:15,624 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 01:38:15,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:15,711 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 01:38:15,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:15,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447520562] [2021-11-07 01:38:15,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:15,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673114407] [2021-11-07 01:38:15,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673114407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:38:15,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:38:15,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:38:15,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362479686] [2021-11-07 01:38:15,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:38:15,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:38:15,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:38:15,743 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 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 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 01:38:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:15,871 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-11-07 01:38:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:38:15,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 7 [2021-11-07 01:38:15,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:15,883 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:38:15,883 INFO L226 Difference]: Without dead ends: 20 [2021-11-07 01:38:15,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:38:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-07 01:38:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2021-11-07 01:38:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 01:38:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-07 01:38:15,923 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2021-11-07 01:38:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:15,923 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-07 01:38:15,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 01:38:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-11-07 01:38:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:38:15,925 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:15,925 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:15,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 01:38:16,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:16,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1337635293, now seen corresponding path program 1 times [2021-11-07 01:38:16,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:16,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019773545] [2021-11-07 01:38:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:16,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:16,192 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:16,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401398795] [2021-11-07 01:38:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:16,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:16,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:16,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:16,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:38:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:16,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:38:16,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:16,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:16,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:16,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019773545] [2021-11-07 01:38:16,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:16,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401398795] [2021-11-07 01:38:16,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401398795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:38:16,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:38:16,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:38:16,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597200835] [2021-11-07 01:38:16,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:38:16,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:16,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:38:16,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:38:16,408 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 01:38:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:16,476 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2021-11-07 01:38:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:38:16,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) Word has length 8 [2021-11-07 01:38:16,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:16,486 INFO L225 Difference]: With dead ends: 25 [2021-11-07 01:38:16,486 INFO L226 Difference]: Without dead ends: 19 [2021-11-07 01:38:16,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:38:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-07 01:38:16,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2021-11-07 01:38:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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 01:38:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-07 01:38:16,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2021-11-07 01:38:16,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:16,493 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-07 01:38:16,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 01:38:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-07 01:38:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:38:16,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:16,494 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:16,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:16,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:16,711 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1611921030, now seen corresponding path program 1 times [2021-11-07 01:38:16,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:16,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561921194] [2021-11-07 01:38:16,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:16,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:16,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:16,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367778563] [2021-11-07 01:38:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:16,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:16,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:16,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:16,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:38:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:16,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:38:16,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:16,875 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 01:38:16,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:16,920 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 01:38:16,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:16,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561921194] [2021-11-07 01:38:16,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:16,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367778563] [2021-11-07 01:38:16,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367778563] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:16,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010556893] [2021-11-07 01:38:16,949 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:38:16,950 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:38:16,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:38:16,963 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:38:16,963 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:38:16,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,001 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:38:17,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:38:17,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:38:17,032 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_20|]} [2021-11-07 01:38:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,049 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 01:38:17,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:17,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:17,054 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,155 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 01:38:17,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:17,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:17,163 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:38:17,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,216 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:38:17,236 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:38:17,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:38:17,245 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:38:17,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:38:17,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:38:17,272 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_20|], 28=[|v_#valid_21|]} [2021-11-07 01:38:17,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,379 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:38:17,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:38:17,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:17,386 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:17,387 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,402 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:38:17,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:17,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:17,405 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,506 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:38:17,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:38:17,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:17,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:17,516 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:38:17,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:17,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:17,560 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:38:17,588 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,589 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:38:17,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,603 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:17,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:38:17,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:38:17,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:17,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:17,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:38:17,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:17,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:17,653 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-11-07 01:38:17,706 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:17,707 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:212 [2021-11-07 01:38:17,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:17,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:17,989 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:18,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:18,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:38:18,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:18,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:38:18,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:38:18,028 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:18,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:38:18,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-07 01:38:18,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-07 01:38:18,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:38:18,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:38:18,200 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:18,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:38:18,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:18,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:18,249 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:18,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,319 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,391 INFO L180 QuantifierPusher]: treesize reduction 133, result has 77.8 percent of original size [2021-11-07 01:38:18,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-07 01:38:18,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:38:18,414 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:600, output treesize:466 [2021-11-07 01:38:18,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,574 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:38:18,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:18,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:38:18,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:38:18,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:18,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:38:18,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:18,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:18,606 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:18,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:18,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:38:18,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:18,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:38:18,633 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:38:18,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:38:18,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:18,652 INFO L185 QuantifierPusher]: treesize reduction 4, result has 92.9 percent of original size 52 [2021-11-07 01:38:18,662 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:38:19,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:19,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:38:19,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 01:38:19,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222376209] [2021-11-07 01:38:19,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:38:19,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:38:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:38:19,389 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 01:38:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:19,495 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-07 01:38:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:38:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) Word has length 8 [2021-11-07 01:38:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:19,496 INFO L225 Difference]: With dead ends: 29 [2021-11-07 01:38:19,497 INFO L226 Difference]: Without dead ends: 24 [2021-11-07 01:38:19,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:38:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-07 01:38:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2021-11-07 01:38:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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 01:38:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-07 01:38:19,503 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2021-11-07 01:38:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:19,503 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-07 01:38:19,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 01:38:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-07 01:38:19,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:38:19,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:19,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:19,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:19,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:19,707 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1565286172, now seen corresponding path program 1 times [2021-11-07 01:38:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:19,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258355482] [2021-11-07 01:38:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:19,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:19,727 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:19,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476164885] [2021-11-07 01:38:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:19,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:19,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:19,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:19,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:38:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:19,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:38:19,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:19,873 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:38:19,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:38:19,890 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 10 treesize of output 8 [2021-11-07 01:38:19,958 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-11-07 01:38:19,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-07 01:38:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:20,196 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-07 01:38:20,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 70 [2021-11-07 01:38:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:20,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:22,022 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~i~0 Int)) (= (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base (let ((.cse0 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse1 (* ULTIMATE.start_main_~i~0 8))) (store .cse0 (+ .cse1 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse0 (+ .cse1 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1)) is different from false [2021-11-07 01:38:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-07 01:38:22,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:22,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258355482] [2021-11-07 01:38:22,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:22,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476164885] [2021-11-07 01:38:22,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476164885] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:22,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [951865664] [2021-11-07 01:38:22,046 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:38:22,047 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:38:22,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:38:22,047 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:38:22,047 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:38:22,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:38:22,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:38:22,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:38:22,063 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_24|]} [2021-11-07 01:38:22,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,075 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 01:38:22,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:22,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:22,079 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,106 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 01:38:22,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:22,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:22,112 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:38:22,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,122 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:38:22,130 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:38:22,132 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:38:22,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:38:22,137 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:38:22,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:38:22,148 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_23|], 28=[|v_#valid_25|]} [2021-11-07 01:38:22,160 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:38:22,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:22,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:22,162 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,199 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:38:22,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:38:22,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:22,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:22,205 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,215 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,299 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:38:22,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:38:22,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:22,306 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:22,308 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:38:22,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:22,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:22,365 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:38:22,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,420 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:38:22,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 01:38:22,446 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 198 [2021-11-07 01:38:22,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2021-11-07 01:38:22,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:38:22,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 01:38:22,479 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,496 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-07 01:38:22,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 01:38:22,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,503 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:199, output treesize:192 [2021-11-07 01:38:22,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,646 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:38:22,659 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-07 01:38:22,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 432 [2021-11-07 01:38:22,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:22,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-11-07 01:38:22,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-07 01:38:22,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:22,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:38:22,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:22,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:22,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:22,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:22,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 74 [2021-11-07 01:38:22,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:38:22,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:38:22,796 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:22,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:22,894 INFO L180 QuantifierPusher]: treesize reduction 126, result has 77.7 percent of original size [2021-11-07 01:38:22,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-07 01:38:22,904 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:38:22,905 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:582, output treesize:439 [2021-11-07 01:38:22,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:22,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,014 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:38:23,016 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:38:23,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:38:23,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:38:23,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:23,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:23,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:38:23,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,040 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:38:23,047 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:38:23,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:38:23,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,055 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:23,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:38:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:23,073 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:23,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:23,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:23,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:23,077 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,080 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:38:23,084 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,084 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-11-07 01:38:23,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,133 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:38:23,135 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:23,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-11-07 01:38:23,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-11-07 01:38:23,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-07 01:38:23,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:23,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:23,198 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:38:23,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:38:23,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:38:23,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:38:23,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:23,228 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:23,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:23,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:23,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:23,235 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,264 INFO L180 QuantifierPusher]: treesize reduction 115, result has 64.7 percent of original size [2021-11-07 01:38:23,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:38:23,268 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:38:23,268 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-11-07 01:38:23,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,330 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:38:23,332 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:23,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:23,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:38:23,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:23,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:23,353 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:23,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:23,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:38:23,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:38:23,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:23,370 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,371 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:23,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-07 01:38:23,374 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:23,374 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-11-07 01:38:23,382 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:38:23,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:38:23,392 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:38:24,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:24,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:38:24,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-11-07 01:38:24,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136773032] [2021-11-07 01:38:24,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:38:24,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:24,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:38:24,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=200, Unknown=1, NotChecked=28, Total=272 [2021-11-07 01:38:24,161 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 01:38:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:35,863 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-11-07 01:38:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 01:38:35,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 9 [2021-11-07 01:38:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:35,866 INFO L225 Difference]: With dead ends: 57 [2021-11-07 01:38:35,867 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 01:38:35,868 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=159, Invalid=773, Unknown=2, NotChecked=58, Total=992 [2021-11-07 01:38:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 01:38:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 20. [2021-11-07 01:38:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 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 01:38:35,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-07 01:38:35,878 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 9 [2021-11-07 01:38:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:35,878 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-07 01:38:35,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 01:38:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-07 01:38:35,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:38:35,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:35,880 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:35,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:36,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-07 01:38:36,097 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -978676906, now seen corresponding path program 1 times [2021-11-07 01:38:36,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:36,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787504750] [2021-11-07 01:38:36,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:36,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:36,126 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:36,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99052353] [2021-11-07 01:38:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:36,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:36,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:36,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:36,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 01:38:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:36,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:38:36,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:36,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:38:36,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:36,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787504750] [2021-11-07 01:38:36,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:36,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99052353] [2021-11-07 01:38:36,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99052353] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:38:36,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:38:36,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:38:36,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386134037] [2021-11-07 01:38:36,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:38:36,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:36,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:38:36,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:38:36,413 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 01:38:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:36,493 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2021-11-07 01:38:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:38:36,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 01:38:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:36,495 INFO L225 Difference]: With dead ends: 34 [2021-11-07 01:38:36,496 INFO L226 Difference]: Without dead ends: 24 [2021-11-07 01:38:36,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:38:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-07 01:38:36,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-11-07 01:38:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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 01:38:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-11-07 01:38:36,503 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2021-11-07 01:38:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:36,503 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-11-07 01:38:36,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 01:38:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-11-07 01:38:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:38:36,504 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:36,505 INFO L513 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:36,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-07 01:38:36,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-11-07 01:38:36,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:36,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:36,727 INFO L85 PathProgramCache]: Analyzing trace with hash 848835292, now seen corresponding path program 2 times [2021-11-07 01:38:36,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:36,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737650687] [2021-11-07 01:38:36,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:36,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:36,765 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:36,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031081919] [2021-11-07 01:38:36,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:38:36,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:36,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:36,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:36,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 01:38:36,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:38:36,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:38:36,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:38:36,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:38:36,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:38:37,042 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:38:37,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737650687] [2021-11-07 01:38:37,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:37,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031081919] [2021-11-07 01:38:37,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031081919] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:38:37,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [949555800] [2021-11-07 01:38:37,046 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:38:37,046 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:38:37,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:38:37,047 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:38:37,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:38:37,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:38:37,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:38:37,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:38:37,081 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_26|], 21=[|v_#valid_28|]} [2021-11-07 01:38:37,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:38:37,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:37,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:38:37,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,140 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 01:38:37,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:37,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:38:37,158 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:38:37,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,167 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:38:37,176 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:38:37,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:38:37,189 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:38:37,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:38:37,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:38:37,205 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_27|], 28=[|v_#valid_29|]} [2021-11-07 01:38:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,290 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:38:37,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:38:37,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:37,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:38:37,306 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,318 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:38:37,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:37,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:38:37,321 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,434 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:38:37,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:38:37,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:37,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:38:37,447 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:38:37,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:37,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:38:37,484 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,497 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:38:37,504 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,504 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:38:37,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:38:37,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:38:37,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:37,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:38:37,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:38:37,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:38:37,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,572 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-07 01:38:37,580 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,580 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:201 [2021-11-07 01:38:37,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,746 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 01:38:37,752 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:38:37,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-07 01:38:37,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:37,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:38:37,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-07 01:38:37,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-07 01:38:37,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 01:38:37,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 01:38:37,870 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:37,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:38:37,908 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:37,912 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:37,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:38:37,913 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:37,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:37,972 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,000 INFO L180 QuantifierPusher]: treesize reduction 131, result has 77.2 percent of original size [2021-11-07 01:38:38,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-07 01:38:38,012 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:38:38,013 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:589, output treesize:444 [2021-11-07 01:38:38,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,124 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:38:38,126 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:38:38,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:38:38,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:38:38,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:38,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:38:38,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:38:38,153 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,153 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:38:38,160 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:38:38,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:38:38,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:38,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:38:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:38,189 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:38,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:38,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,191 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:38:38,205 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,205 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-11-07 01:38:38,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,243 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:38,248 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:38:38,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-11-07 01:38:38,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 01:38:38,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-07 01:38:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:38,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:38,314 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:38:38,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:38:38,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:38:38,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:38:38,320 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:38,350 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:38,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:38,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,354 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,372 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,381 INFO L180 QuantifierPusher]: treesize reduction 119, result has 65.0 percent of original size [2021-11-07 01:38:38,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:38:38,385 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:38:38,385 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:221 [2021-11-07 01:38:38,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,431 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:38:38,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:38:38,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:38:38,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:38:38,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:38,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:38:38,453 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:38:38,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:38:38,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:38:38,457 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:38,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:38:38,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:38:38,466 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:38:38,466 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-11-07 01:38:38,474 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:38:38,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:38:38,485 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:38:39,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:38:39,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:38:39,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-07 01:38:39,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681578584] [2021-11-07 01:38:39,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:38:39,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:38:39,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:38:39,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:38:39,167 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 8 states, 8 states have (on average 1.75) 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 01:38:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:39,259 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-11-07 01:38:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:38:39,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) 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 11 [2021-11-07 01:38:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:39,261 INFO L225 Difference]: With dead ends: 39 [2021-11-07 01:38:39,261 INFO L226 Difference]: Without dead ends: 30 [2021-11-07 01:38:39,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:38:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-07 01:38:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2021-11-07 01:38:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 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 01:38:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-07 01:38:39,268 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 11 [2021-11-07 01:38:39,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:39,268 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-07 01:38:39,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) 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 01:38:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-07 01:38:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:38:39,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:38:39,269 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:39,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:39,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-11-07 01:38:39,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash -746752909, now seen corresponding path program 3 times [2021-11-07 01:38:39,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:38:39,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592283160] [2021-11-07 01:38:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:39,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:38:39,522 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:38:39,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117193895] [2021-11-07 01:38:39,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:38:39,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:38:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:38:39,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:38:39,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:38:39,679 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:38:39,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:38:39,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:38:39,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:39,700 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 10 treesize of output 8 [2021-11-07 01:38:39,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-07 01:38:39,780 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-11-07 01:38:39,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-07 01:38:40,000 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-11-07 01:38:40,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-11-07 01:38:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:41,870 INFO L354 Elim1Store]: treesize reduction 152, result has 0.7 percent of original size [2021-11-07 01:38:41,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 134 [2021-11-07 01:38:42,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:38:43,062 INFO L354 Elim1Store]: treesize reduction 962, result has 8.9 percent of original size [2021-11-07 01:38:43,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 181 [2021-11-07 01:39:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:26,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:38,033 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse2 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse2 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-11-07 01:39:40,155 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-11-07 01:39:42,287 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse8 (* ULTIMATE.start_main_~i~0 8))) (store .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) (.cse6 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse3 c_ULTIMATE.start_main_~b~0.offset) (select .cse4 c_ULTIMATE.start_main_~a~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-11-07 01:39:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-07 01:39:42,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:39:42,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592283160] [2021-11-07 01:39:42,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:39:42,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117193895] [2021-11-07 01:39:42,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117193895] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:42,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [651678455] [2021-11-07 01:39:42,319 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:39:42,319 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:39:42,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:39:42,320 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:39:42,320 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:39:42,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,333 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:39:42,335 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:39:42,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:39:42,341 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_29|], 21=[|v_#valid_32|]} [2021-11-07 01:39:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,362 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 01:39:42,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:42,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,365 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:42,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,400 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 01:39:42,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:42,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:42,406 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:39:42,415 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,416 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:39:42,426 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:39:42,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:39:42,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:39:42,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:39:42,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:39:42,446 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_30|], 28=[|v_#valid_33|]} [2021-11-07 01:39:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,553 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:39:42,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:39:42,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:39:42,558 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:39:42,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:39:42,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:39:42,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:39:42,574 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,684 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:39:42,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:39:42,686 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:39:42,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:39:42,691 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:39:42,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:39:42,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:39:42,731 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:39:42,754 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,754 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:39:42,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,765 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:39:42,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:39:42,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:42,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:42,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:39:42,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:42,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:42,811 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-07 01:39:42,843 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:42,843 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:214 [2021-11-07 01:39:42,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:42,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,980 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:39:42,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:42,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:42,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:39:42,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:39:42,997 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:39:43,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-07 01:39:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-07 01:39:43,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-07 01:39:43,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-07 01:39:43,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:39:43,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:43,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:43,140 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,197 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,227 INFO L180 QuantifierPusher]: treesize reduction 133, result has 77.8 percent of original size [2021-11-07 01:39:43,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-07 01:39:43,242 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:39:43,243 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:600, output treesize:466 [2021-11-07 01:39:43,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,347 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:39:43,348 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:39:43,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:39:43,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:39:43,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:43,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:43,364 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:39:43,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,371 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:39:43,378 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:39:43,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:39:43,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,385 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:39:43,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:39:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,403 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:43,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:39:43,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,410 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:39:43,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,414 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2021-11-07 01:39:43,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,454 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:39:43,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:39:43,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:39:43,460 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:39:43,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 01:39:43,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,514 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:39:43,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:39:43,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 01:39:43,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 01:39:43,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,543 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:43,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:39:43,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,549 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,575 INFO L180 QuantifierPusher]: treesize reduction 111, result has 65.5 percent of original size [2021-11-07 01:39:43,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:39:43,578 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:39:43,579 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-11-07 01:39:43,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,619 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:39:43,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:43,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:39:43,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:39:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:43,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:43,639 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:43,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:39:43,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,642 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:39:43,643 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:43,647 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:43,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-07 01:39:43,650 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:43,651 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-11-07 01:39:43,657 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:39:43,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:39:43,666 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:39:44,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:39:44,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:39:44,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-11-07 01:39:44,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78947246] [2021-11-07 01:39:44,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 01:39:44,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:39:44,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 01:39:44,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=288, Unknown=6, NotChecked=108, Total=462 [2021-11-07 01:39:44,649 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 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 01:39:46,706 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (and (= (select (let ((.cse1 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse0 (+ .cse1 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse2 (+ .cse1 c_ULTIMATE.start_main_~a~0.offset (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse7 (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse11 (* ULTIMATE.start_main_~i~0 8))) (store .cse10 (+ .cse11 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse10 (+ .cse11 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4)))) (.cse9 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse8 (+ .cse9 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse8 (+ .cse9 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse5 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse7))) (let ((.cse3 (let ((.cse6 (select .cse5 c_ULTIMATE.start_main_~b~0.base))) (store .cse6 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse6 c_ULTIMATE.start_main_~b~0.offset) (select .cse7 c_ULTIMATE.start_main_~a~0.offset))))) (.cse4 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset .cse4) (+ (select (select (store .cse5 c_ULTIMATE.start_main_~b~0.base .cse3) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse4 (- 8))) (select .cse3 (+ c_ULTIMATE.start_main_~b~0.offset .cse4 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= (select .cse0 c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse12 (let ((.cse14 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse15 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse14 (+ .cse15 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse14 (+ .cse15 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse15 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse13 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse12 (+ c_ULTIMATE.start_main_~b~0.offset .cse13) (+ (select .cse12 (+ c_ULTIMATE.start_main_~b~0.offset .cse13 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse12) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse13 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= c_ULTIMATE.start_main_~b~0.offset 0) (= 8 (select .cse2 c_ULTIMATE.start_main_~a~0.offset)))) is different from false [2021-11-07 01:39:48,693 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 4))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (exists ((v_ULTIMATE.start_main_~i~0_105 Int)) (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (and (or (= (* 8 v_ULTIMATE.start_main_~i~0_105) 0) (= 8 (select .cse7 c_ULTIMATE.start_main_~a~0.offset))) (let ((.cse8 (* v_ULTIMATE.start_main_~i~0_105 8))) (= (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8)) (+ 4 (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8 (- 8))))))))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-11-07 01:39:50,178 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse1 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6))) (.cse2 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse3 (* 8 v_ULTIMATE.start_main_~i~0_105))) (and (let ((.cse0 (not (= 8 .cse3)))) (or (and (or .cse0 (= .cse1 12)) (= .cse2 0)) (let ((.cse4 (select .cse5 c_ULTIMATE.start_main_~a~0.offset))) (and (or (= .cse3 0) (= 8 .cse4)) (or .cse0 (= .cse1 (+ .cse4 4))))))) (or (= .cse1 (+ 4 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6 (- 8))))) (= (+ 8 .cse2) .cse3)) (let ((.cse7 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (+ (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7 (- 8))) 4) (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7)))))))) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse10 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse10 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse9 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse8) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse9 (- 8))) (select .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-11-07 01:39:57,341 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (and (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse1 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6))) (.cse2 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse3 (* 8 v_ULTIMATE.start_main_~i~0_105))) (and (let ((.cse0 (not (= 8 .cse3)))) (or (and (or .cse0 (= .cse1 12)) (= .cse2 0)) (let ((.cse4 (select .cse5 c_ULTIMATE.start_main_~a~0.offset))) (and (or (= .cse3 0) (= 8 .cse4)) (or .cse0 (= .cse1 (+ .cse4 4))))))) (or (= .cse1 (+ 4 (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse6 (- 8))))) (= (+ 8 .cse2) .cse3)) (let ((.cse7 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (+ (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7 (- 8))) 4) (select .cse5 (+ c_ULTIMATE.start_main_~a~0.offset .cse7)))))))) (= (select (let ((.cse9 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse8 (+ .cse9 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse8 (+ .cse9 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse9 c_ULTIMATE.start_main_~a~0.offset (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select .cse8 c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse10 (let ((.cse12 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse13 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse12 (+ .cse13 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse12 (+ .cse13 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse13 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse11 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse10 (+ c_ULTIMATE.start_main_~b~0.offset .cse11) (+ (select .cse10 (+ c_ULTIMATE.start_main_~b~0.offset .cse11 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse10) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse11 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (exists ((ULTIMATE.start_main_~a~0.base Int) (v_ULTIMATE.start_main_~i~0_108 Int) (ULTIMATE.start_main_~a~0.offset Int) (v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse22 (* v_ULTIMATE.start_main_~i~0_105 8)) (.cse16 (select |c_#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse14 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse21 (select .cse16 ULTIMATE.start_main_~a~0.offset)) (.cse18 (select .cse16 (+ ULTIMATE.start_main_~a~0.offset .cse22))) (.cse19 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse20 (* 8 v_ULTIMATE.start_main_~i~0_105))) (and (let ((.cse15 (* v_ULTIMATE.start_main_~i~0_108 8))) (= (select .cse14 (+ c_ULTIMATE.start_main_~b~0.offset .cse15)) (+ (select .cse16 (+ ULTIMATE.start_main_~a~0.offset .cse15 (- 8))) (select .cse14 (+ c_ULTIMATE.start_main_~b~0.offset .cse15 (- 8)))))) (not (= c_ULTIMATE.start_main_~b~0.base ULTIMATE.start_main_~a~0.base)) (<= 2 v_ULTIMATE.start_main_~i~0_108) (let ((.cse17 (not (= 8 .cse20)))) (or (and (or .cse17 (= .cse18 12)) (= .cse19 0)) (and (or (= .cse20 0) (= 8 .cse21)) (or .cse17 (= .cse18 (+ .cse21 4)))))) (= (select .cse14 (+ c_ULTIMATE.start_main_~b~0.offset 8)) (+ .cse21 1)) (or (= .cse18 (+ 4 (select .cse16 (+ ULTIMATE.start_main_~a~0.offset .cse22 (- 8))))) (= (+ 8 .cse19) .cse20)) (let ((.cse23 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (+ (select .cse16 (+ ULTIMATE.start_main_~a~0.offset .cse23 (- 8))) 4) (select .cse16 (+ ULTIMATE.start_main_~a~0.offset .cse23)))))))) (= c_ULTIMATE.start_main_~b~0.offset 0))) is different from false [2021-11-07 01:39:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:39:57,351 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-11-07 01:39:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:39:57,352 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 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 11 [2021-11-07 01:39:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:39:57,352 INFO L225 Difference]: With dead ends: 40 [2021-11-07 01:39:57,353 INFO L226 Difference]: Without dead ends: 38 [2021-11-07 01:39:57,354 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=133, Invalid=587, Unknown=10, NotChecked=392, Total=1122 [2021-11-07 01:39:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-07 01:39:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 19. [2021-11-07 01:39:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 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 01:39:57,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-07 01:39:57,366 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 11 [2021-11-07 01:39:57,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:39:57,367 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-07 01:39:57,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 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 01:39:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-07 01:39:57,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:39:57,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:39:57,368 INFO L513 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:39:57,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:39:57,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:57,595 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:39:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:39:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash -659676164, now seen corresponding path program 4 times [2021-11-07 01:39:57,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:39:57,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588443402] [2021-11-07 01:39:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:39:57,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:39:57,626 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:39:57,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857666546] [2021-11-07 01:39:57,639 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:39:57,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:39:57,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:39:57,643 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:39:57,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 01:39:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:39:57,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:39:57,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:39:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:57,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:39:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:39:57,993 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:39:57,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588443402] [2021-11-07 01:39:57,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:39:57,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857666546] [2021-11-07 01:39:57,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857666546] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:39:57,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [614859981] [2021-11-07 01:39:57,997 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:39:57,997 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:39:57,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:39:57,997 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:39:57,998 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:39:58,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:39:58,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:39:58,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:39:58,010 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_32|], 21=[|v_#valid_35|]} [2021-11-07 01:39:58,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,026 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 01:39:58,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:58,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:39:58,029 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,064 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 01:39:58,065 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:58,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:58,070 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,086 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:39:58,087 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,087 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:39:58,095 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:39:58,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:39:58,099 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:39:58,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:39:58,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:39:58,110 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_33|], 28=[|v_#valid_36|]} [2021-11-07 01:39:58,119 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:39:58,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:39:58,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:39:58,121 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,163 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:39:58,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:39:58,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:39:58,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,168 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:39:58,168 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,181 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,251 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:39:58,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:39:58,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:39:58,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:39:58,258 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,267 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:39:58,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:39:58,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:39:58,297 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,314 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:39:58,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,315 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:39:58,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,322 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 01:39:58,327 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 198 [2021-11-07 01:39:58,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2021-11-07 01:39:58,354 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:39:58,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:39:58,359 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,369 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,372 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size [2021-11-07 01:39:58,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-07 01:39:58,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,377 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:199, output treesize:186 [2021-11-07 01:39:58,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:39:58,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:39:58,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 426 [2021-11-07 01:39:58,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 396 [2021-11-07 01:39:58,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 475 [2021-11-07 01:39:58,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2021-11-07 01:39:58,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-07 01:39:58,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-07 01:39:58,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:39:58,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:58,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:39:58,635 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,702 INFO L180 QuantifierPusher]: treesize reduction 130, result has 77.6 percent of original size [2021-11-07 01:39:58,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:39:58,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:39:58,710 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:576, output treesize:450 [2021-11-07 01:39:58,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,810 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:39:58,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:39:58,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:39:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:39:58,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:58,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:58,827 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,830 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:39:58,833 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,834 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:39:58,841 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:39:58,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:39:58,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,848 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:39:58,850 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.2 percent of original size 76 [2021-11-07 01:39:58,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,864 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:58,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-07 01:39:58,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:58,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:39:58,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,871 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,872 INFO L180 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size [2021-11-07 01:39:58,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 01:39:58,874 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,874 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:71 [2021-11-07 01:39:58,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:58,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,909 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,911 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,912 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:39:58,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-07 01:39:58,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-07 01:39:58,916 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:58,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 01:39:58,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:39:58,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,966 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:39:58,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 58 [2021-11-07 01:39:58,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:39:58,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:39:58,970 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:58,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:58,990 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:58,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:39:58,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:58,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:58,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:58,994 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:58,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,023 INFO L180 QuantifierPusher]: treesize reduction 113, result has 64.0 percent of original size [2021-11-07 01:39:59,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-07 01:39:59,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:39:59,026 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:315, output treesize:201 [2021-11-07 01:39:59,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,068 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:39:59,070 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:39:59,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:39:59,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:39:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:59,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:59,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:39:59,092 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:39:59,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:39:59,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:59,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:39:59,096 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:39:59,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:39:59,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:59,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:39:59,102 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:39:59,103 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-11-07 01:39:59,111 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:39:59,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:39:59,120 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:39:59,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:39:59,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:39:59,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-11-07 01:39:59,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527735591] [2021-11-07 01:39:59,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:39:59,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:39:59,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:39:59,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:39:59,798 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 01:40:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:00,378 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2021-11-07 01:40:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 01:40:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 11 [2021-11-07 01:40:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:00,380 INFO L225 Difference]: With dead ends: 68 [2021-11-07 01:40:00,380 INFO L226 Difference]: Without dead ends: 61 [2021-11-07 01:40:00,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2021-11-07 01:40:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-07 01:40:00,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 22. [2021-11-07 01:40:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 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 01:40:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-11-07 01:40:00,398 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 11 [2021-11-07 01:40:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:00,398 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-11-07 01:40:00,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 01:40:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-07 01:40:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:40:00,400 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:00,400 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:00,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:00,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:00,619 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:00,620 INFO L85 PathProgramCache]: Analyzing trace with hash 985561389, now seen corresponding path program 1 times [2021-11-07 01:40:00,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:40:00,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286065875] [2021-11-07 01:40:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:00,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:40:00,647 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:40:00,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608810986] [2021-11-07 01:40:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:00,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:00,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:00,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:00,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:40:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:40:00,844 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:40:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:40:00,921 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:40:00,922 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:40:00,923 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:40:00,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:01,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable145 [2021-11-07 01:40:01,146 INFO L731 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2021-11-07 01:40:01,149 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:40:01,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:40:01 BoogieIcfgContainer [2021-11-07 01:40:01,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:40:01,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:40:01,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:40:01,197 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:40:01,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:38:14" (3/4) ... [2021-11-07 01:40:01,200 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:40:01,246 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af186b2d-08f2-411e-a60b-b836af908c54/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:40:01,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:40:01,247 INFO L168 Benchmark]: Toolchain (without parser) took 107737.13 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 81.8 MB in the beginning and 130.0 MB in the end (delta: -48.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,247 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:40:01,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.30 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.5 MB in the beginning and 110.1 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.02 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,248 INFO L168 Benchmark]: Boogie Preprocessor took 72.35 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 107.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,249 INFO L168 Benchmark]: RCFGBuilder took 597.53 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 93.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,249 INFO L168 Benchmark]: TraceAbstraction took 106538.60 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 93.3 MB in the beginning and 132.1 MB in the end (delta: -38.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,249 INFO L168 Benchmark]: Witness Printer took 50.02 ms. Allocated memory is still 163.6 MB. Free memory was 132.1 MB in the beginning and 130.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:01,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 67.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.30 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.5 MB in the beginning and 110.1 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.02 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 108.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.35 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 107.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 597.53 ms. Allocated memory is still 136.3 MB. Free memory was 107.1 MB in the beginning and 93.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 106538.60 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 93.3 MB in the beginning and 132.1 MB in the end (delta: -38.8 MB). Peak memory consumption was 83.8 MB. Max. memory is 16.1 GB. * Witness Printer took 50.02 ms. Allocated memory is still 163.6 MB. Free memory was 132.1 MB in the beginning and 130.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 1 [L34] i=1 VAL [N=2] [L34] COND TRUE i