./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f3d269e2deae26c7ce036912e3874a49494c634991dfc4135fd1a54005e7fac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:57:36,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:57:36,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:57:36,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:57:36,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:57:36,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:57:36,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:57:36,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:57:36,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:57:36,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:57:36,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:57:36,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:57:36,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:57:36,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:57:36,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:57:36,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:57:36,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:57:36,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:57:36,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:57:36,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:57:36,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:57:36,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:57:36,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:57:36,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:57:36,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:57:36,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:57:36,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:57:36,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:57:36,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:57:36,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:57:36,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:57:36,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:57:36,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:57:36,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:57:36,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:57:36,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:57:36,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:57:36,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:57:36,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:57:36,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:57:36,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:57:36,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 04:57:36,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:57:36,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:57:36,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:57:36,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:57:36,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:57:36,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:57:36,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:57:36,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:57:36,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:57:36,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:57:36,875 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:57:36,875 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:57:36,875 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:57:36,876 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:57:36,876 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:57:36,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:57:36,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:57:36,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:57:36,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:57:36,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:57:36,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:57:36,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:57:36,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:57:36,879 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:57:36,880 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:57:36,880 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:57:36,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:57:36,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:57:36,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:57:36,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:57:36,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:57:36,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:57:36,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:57:36,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:57:36,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:57:36,885 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:57:36,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:57:36,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:57:36,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:57:36,886 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_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f3d269e2deae26c7ce036912e3874a49494c634991dfc4135fd1a54005e7fac [2021-11-03 04:57:37,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:57:37,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:57:37,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:57:37,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:57:37,279 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:57:37,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety-ext3/getNumbers4-2.c [2021-11-03 04:57:37,350 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/data/9ca89cdcf/590223af60c34da2a38fbcb9fc6f4eb0/FLAGde394bf7b [2021-11-03 04:57:37,905 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:57:37,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/sv-benchmarks/c/memsafety-ext3/getNumbers4-2.c [2021-11-03 04:57:37,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/data/9ca89cdcf/590223af60c34da2a38fbcb9fc6f4eb0/FLAGde394bf7b [2021-11-03 04:57:38,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/data/9ca89cdcf/590223af60c34da2a38fbcb9fc6f4eb0 [2021-11-03 04:57:38,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:57:38,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:57:38,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:57:38,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:57:38,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:57:38,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673283af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38, skipping insertion in model container [2021-11-03 04:57:38,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:57:38,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:57:38,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:57:38,642 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:57:38,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:57:38,711 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:57:38,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38 WrapperNode [2021-11-03 04:57:38,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:57:38,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:57:38,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:57:38,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:57:38,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:57:38,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:57:38,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:57:38,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:57:38,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:57:38,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:57:38,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:57:38,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:57:38,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (1/1) ... [2021-11-03 04:57:38,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:57:38,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:38,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:57:38,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:57:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:57:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:57:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 04:57:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:57:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:57:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 04:57:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:57:39,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:57:39,632 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-03 04:57:39,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:57:39 BoogieIcfgContainer [2021-11-03 04:57:39,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:57:39,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:57:39,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:57:39,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:57:39,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:57:38" (1/3) ... [2021-11-03 04:57:39,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20601b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:57:39, skipping insertion in model container [2021-11-03 04:57:39,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:38" (2/3) ... [2021-11-03 04:57:39,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20601b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:57:39, skipping insertion in model container [2021-11-03 04:57:39,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:57:39" (3/3) ... [2021-11-03 04:57:39,653 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers4-2.c [2021-11-03 04:57:39,659 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:57:39,659 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-03 04:57:39,715 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:57:39,722 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-03 04:57:39,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-03 04:57:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 2.466666666666667) internal successors, (37), 32 states have internal predecessors, (37), 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) [2021-11-03 04:57:39,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:57:39,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:39,743 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:57:39,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:39,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash 142550, now seen corresponding path program 1 times [2021-11-03 04:57:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:39,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648799952] [2021-11-03 04:57:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:39,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:40,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:40,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648799952] [2021-11-03 04:57:40,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648799952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:40,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:40,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:57:40,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290125820] [2021-11-03 04:57:40,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:57:40,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:57:40,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:40,043 INFO L87 Difference]: Start difference. First operand has 33 states, 15 states have (on average 2.466666666666667) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:57:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:40,127 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-11-03 04:57:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:57:40,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-03 04:57:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:40,139 INFO L225 Difference]: With dead ends: 32 [2021-11-03 04:57:40,140 INFO L226 Difference]: Without dead ends: 31 [2021-11-03 04:57:40,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-03 04:57:40,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-03 04:57:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:40,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-11-03 04:57:40,179 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 3 [2021-11-03 04:57:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:40,180 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-11-03 04:57:40,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:57:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-11-03 04:57:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 04:57:40,181 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:40,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 04:57:40,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:57:40,182 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:40,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:40,186 INFO L85 PathProgramCache]: Analyzing trace with hash 142551, now seen corresponding path program 1 times [2021-11-03 04:57:40,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:40,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775725025] [2021-11-03 04:57:40,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:40,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:40,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:40,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775725025] [2021-11-03 04:57:40,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775725025] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:40,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:40,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:57:40,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284850010] [2021-11-03 04:57:40,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:57:40,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:57:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:40,331 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:57:40,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:40,406 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2021-11-03 04:57:40,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:57:40,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-03 04:57:40,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:40,413 INFO L225 Difference]: With dead ends: 33 [2021-11-03 04:57:40,413 INFO L226 Difference]: Without dead ends: 33 [2021-11-03 04:57:40,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-03 04:57:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-03 04:57:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 17 states have (on average 2.176470588235294) internal successors, (37), 32 states have internal predecessors, (37), 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) [2021-11-03 04:57:40,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-11-03 04:57:40,425 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 3 [2021-11-03 04:57:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:40,426 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-03 04:57:40,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-03 04:57:40,426 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2021-11-03 04:57:40,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:57:40,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:40,427 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-11-03 04:57:40,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:57:40,428 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash 137094661, now seen corresponding path program 1 times [2021-11-03 04:57:40,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:40,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269297821] [2021-11-03 04:57:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:40,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:40,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:40,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269297821] [2021-11-03 04:57:40,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269297821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:40,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349319579] [2021-11-03 04:57:40,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:40,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:40,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:40,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:40,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:57:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:40,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:57:40,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:40,914 INFO L354 Elim1Store]: treesize reduction 89, result has 18.3 percent of original size [2021-11-03 04:57:40,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 47 treesize of output 56 [2021-11-03 04:57:40,944 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:57:40,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 91 [2021-11-03 04:57:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:41,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:41,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349319579] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:41,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1149305024] [2021-11-03 04:57:41,723 INFO L159 IcfgInterpreter]: Started Sifa with 4 locations of interest [2021-11-03 04:57:41,723 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:57:41,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:57:41,739 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:57:41,739 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:57:41,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,782 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:41,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:57:41,787 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:41,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:41,789 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:41,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:57:41,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:41,827 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_53|], 36=[|v_#valid_69|]} [2021-11-03 04:57:41,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:57:41,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:41,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:41,852 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:41,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:41,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,012 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:57:42,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:57:42,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:42,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:42,022 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:57:42,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:42,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:42,080 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:57:42,110 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,110 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:57:42,121 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:57:42,126 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:57:42,135 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:57:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:57:42,160 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:42,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:42,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,180 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,203 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:57:42,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:57:42,215 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,215 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:57:42,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,360 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,391 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,406 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:57:42,410 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:42,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:57:42,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:57:42,464 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:57:42,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:42,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:42,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:42,506 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:42,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:57:42,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:42,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:42,532 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,617 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:57:42,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:57:42,628 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:42,629 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:57:42,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,732 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:57:42,735 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:42,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,736 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:57:42,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:57:42,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:57:42,747 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:42,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:42,749 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:42,752 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:42,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:57:42,757 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:42,757 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:57:42,762 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:57:43,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:57:43,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:57:43,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2021-11-03 04:57:43,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885782946] [2021-11-03 04:57:43,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:57:43,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:57:43,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:57:43,054 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-11-03 04:57:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:43,212 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-11-03 04:57:43,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:57:43,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 5 [2021-11-03 04:57:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:43,216 INFO L225 Difference]: With dead ends: 53 [2021-11-03 04:57:43,216 INFO L226 Difference]: Without dead ends: 53 [2021-11-03 04:57:43,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:57:43,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-03 04:57:43,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 39. [2021-11-03 04:57:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 38 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2021-11-03 04:57:43,223 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 5 [2021-11-03 04:57:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:43,223 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2021-11-03 04:57:43,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-11-03 04:57:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2021-11-03 04:57:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:57:43,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:43,225 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-11-03 04:57:43,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:43,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:43,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:43,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash -323536264, now seen corresponding path program 1 times [2021-11-03 04:57:43,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:43,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411734037] [2021-11-03 04:57:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:43,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 04:57:43,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:43,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411734037] [2021-11-03 04:57:43,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411734037] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:43,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720648801] [2021-11-03 04:57:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:43,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:43,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:43,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 04:57:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:43,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:57:43,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:43,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:43,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720648801] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:43,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [664566661] [2021-11-03 04:57:43,796 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-03 04:57:43,796 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:57:43,796 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:57:43,797 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:57:43,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:57:43,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,804 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:43,805 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:57:43,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:43,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:57:43,808 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:43,809 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:43,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:43,816 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_54|], 36=[|v_#valid_70|]} [2021-11-03 04:57:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:57:43,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:43,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:43,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:43,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:43,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,957 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:57:43,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:57:43,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:43,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:43,968 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:43,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:43,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:43,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:57:43,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:43,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:43,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:44,000 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:57:44,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,015 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:57:44,022 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:57:44,029 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:57:44,034 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:57:44,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:57:44,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:44,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:44,063 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,077 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:57:44,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:57:44,081 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,081 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:57:44,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,244 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:44,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:57:44,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:57:44,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:57:44,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:57:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:57:44,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:44,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:44,309 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:44,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:44,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:44,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:44,336 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,406 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:57:44,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:57:44,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:44,414 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:57:44,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,505 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:57:44,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:44,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:57:44,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:57:44,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:57:44,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:44,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:44,527 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:44,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:44,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:57:44,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:44,534 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:57:44,541 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:57:45,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:57:45,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:57:45,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-03 04:57:45,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642308175] [2021-11-03 04:57:45,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:57:45,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:45,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:57:45,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:57:45,013 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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) [2021-11-03 04:57:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:45,247 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-11-03 04:57:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:57:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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 [2021-11-03 04:57:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:45,254 INFO L225 Difference]: With dead ends: 49 [2021-11-03 04:57:45,254 INFO L226 Difference]: Without dead ends: 49 [2021-11-03 04:57:45,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:57:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-03 04:57:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-11-03 04:57:45,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:45,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2021-11-03 04:57:45,259 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 8 [2021-11-03 04:57:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:45,260 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2021-11-03 04:57:45,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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) [2021-11-03 04:57:45,260 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-11-03 04:57:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 04:57:45,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:45,261 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2021-11-03 04:57:45,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:45,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:45,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash 294853775, now seen corresponding path program 2 times [2021-11-03 04:57:45,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:45,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192979133] [2021-11-03 04:57:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:45,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:45,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:45,653 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:45,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192979133] [2021-11-03 04:57:45,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192979133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:45,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890973433] [2021-11-03 04:57:45,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:57:45,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:45,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:45,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:45,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 04:57:45,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 04:57:45,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:57:45,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:57:45,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:45,820 INFO L354 Elim1Store]: treesize reduction 86, result has 21.1 percent of original size [2021-11-03 04:57:45,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 30 treesize of output 42 [2021-11-03 04:57:45,825 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 116 treesize of output 112 [2021-11-03 04:57:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:57:46,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 04:57:46,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890973433] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:46,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:57:46,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 3] total 11 [2021-11-03 04:57:46,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251742871] [2021-11-03 04:57:46,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:57:46,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:57:46,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:57:46,477 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-03 04:57:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:46,555 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2021-11-03 04:57:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:57:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 [2021-11-03 04:57:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:46,557 INFO L225 Difference]: With dead ends: 43 [2021-11-03 04:57:46,558 INFO L226 Difference]: Without dead ends: 43 [2021-11-03 04:57:46,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:57:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-03 04:57:46,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-03 04:57:46,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 42 states have internal predecessors, (48), 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) [2021-11-03 04:57:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-11-03 04:57:46,571 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 11 [2021-11-03 04:57:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:46,571 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-11-03 04:57:46,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-03 04:57:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-11-03 04:57:46,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:57:46,573 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:46,573 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1] [2021-11-03 04:57:46,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:46,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-03 04:57:46,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:46,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:46,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1700748735, now seen corresponding path program 1 times [2021-11-03 04:57:46,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:46,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104071142] [2021-11-03 04:57:46,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:46,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-03 04:57:46,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:46,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104071142] [2021-11-03 04:57:46,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104071142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:46,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:46,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:57:46,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880946239] [2021-11-03 04:57:46,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:57:46,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:46,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:57:46,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:46,841 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-03 04:57:46,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:46,891 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2021-11-03 04:57:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:57:46,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 16 [2021-11-03 04:57:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:46,897 INFO L225 Difference]: With dead ends: 42 [2021-11-03 04:57:46,897 INFO L226 Difference]: Without dead ends: 42 [2021-11-03 04:57:46,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:57:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-03 04:57:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-03 04:57:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 41 states have internal predecessors, (46), 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) [2021-11-03 04:57:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-11-03 04:57:46,908 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 16 [2021-11-03 04:57:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:46,908 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-11-03 04:57:46,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-11-03 04:57:46,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-11-03 04:57:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 04:57:46,909 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:46,910 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1] [2021-11-03 04:57:46,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-03 04:57:46,910 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1183603236, now seen corresponding path program 1 times [2021-11-03 04:57:46,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:46,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893422994] [2021-11-03 04:57:46,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:46,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:47,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:47,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893422994] [2021-11-03 04:57:47,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893422994] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:47,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723645902] [2021-11-03 04:57:47,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:47,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:47,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:47,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:47,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 04:57:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:47,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:57:47,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:47,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:47,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723645902] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:47,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1470786447] [2021-11-03 04:57:47,255 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:57:47,255 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:57:47,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:57:47,256 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:57:47,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:57:47,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:57:47,267 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:47,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:57:47,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:47,275 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_56|], 36=[|v_#valid_72|]} [2021-11-03 04:57:47,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:57:47,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:47,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:47,297 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,389 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:57:47,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:57:47,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:47,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:47,399 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,405 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:57:47,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:47,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:47,422 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:57:47,436 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,436 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:57:47,442 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:57:47,445 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:57:47,457 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:57:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:57:47,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:47,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:57:47,479 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,488 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,492 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:57:47,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:57:47,496 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,496 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:57:47,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,594 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,601 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:47,604 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:57:47,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:57:47,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:57:47,630 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:57:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:57:47,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:47,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:57:47,664 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:47,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:47,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:47,694 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:47,695 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,758 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:57:47,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:57:47,767 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:47,767 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:57:47,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,857 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:57:47,859 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:47,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:57:47,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:57:47,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:57:47,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:47,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:47,872 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:47,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,876 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:47,878 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:57:47,878 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:47,878 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:57:47,887 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:57:48,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:57:48,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:57:48,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2021-11-03 04:57:48,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562388741] [2021-11-03 04:57:48,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:57:48,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:48,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:57:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:57:48,512 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:48,562 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2021-11-03 04:57:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:57:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-03 04:57:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:48,563 INFO L225 Difference]: With dead ends: 50 [2021-11-03 04:57:48,563 INFO L226 Difference]: Without dead ends: 50 [2021-11-03 04:57:48,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:57:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-03 04:57:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-03 04:57:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.5) internal successors, (54), 49 states have internal predecessors, (54), 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) [2021-11-03 04:57:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-11-03 04:57:48,568 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2021-11-03 04:57:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:48,569 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-11-03 04:57:48,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-11-03 04:57:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:57:48,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:48,570 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2021-11-03 04:57:48,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:48,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-03 04:57:48,782 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:48,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -905746468, now seen corresponding path program 2 times [2021-11-03 04:57:48,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:48,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918063110] [2021-11-03 04:57:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:48,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:48,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:48,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918063110] [2021-11-03 04:57:48,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918063110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:48,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:48,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:57:48,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691264715] [2021-11-03 04:57:48,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:57:48,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:57:48,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:48,870 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-03 04:57:48,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:48,899 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-11-03 04:57:48,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:57:48,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-03 04:57:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:48,901 INFO L225 Difference]: With dead ends: 49 [2021-11-03 04:57:48,901 INFO L226 Difference]: Without dead ends: 49 [2021-11-03 04:57:48,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:57:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-03 04:57:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-11-03 04:57:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 48 states have internal predecessors, (53), 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) [2021-11-03 04:57:48,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-11-03 04:57:48,909 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 25 [2021-11-03 04:57:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:48,910 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-11-03 04:57:48,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-03 04:57:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-11-03 04:57:48,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 04:57:48,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:48,912 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2021-11-03 04:57:48,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-03 04:57:48,913 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:48,913 INFO L85 PathProgramCache]: Analyzing trace with hash -905746467, now seen corresponding path program 1 times [2021-11-03 04:57:48,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:48,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338960573] [2021-11-03 04:57:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:48,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:49,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:49,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338960573] [2021-11-03 04:57:49,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338960573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:49,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:49,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:57:49,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312771184] [2021-11-03 04:57:49,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:57:49,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:57:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:49,032 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-03 04:57:49,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:49,084 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2021-11-03 04:57:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:57:49,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-03 04:57:49,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:49,086 INFO L225 Difference]: With dead ends: 50 [2021-11-03 04:57:49,087 INFO L226 Difference]: Without dead ends: 50 [2021-11-03 04:57:49,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-03 04:57:49,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-03 04:57:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 49 states have internal predecessors, (54), 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) [2021-11-03 04:57:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2021-11-03 04:57:49,101 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 25 [2021-11-03 04:57:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:49,101 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2021-11-03 04:57:49,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-03 04:57:49,102 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2021-11-03 04:57:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:57:49,103 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:49,103 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 2, 1, 1, 1, 1, 1] [2021-11-03 04:57:49,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-03 04:57:49,103 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:49,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:49,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1456089878, now seen corresponding path program 1 times [2021-11-03 04:57:49,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:49,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364177929] [2021-11-03 04:57:49,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:49,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 72 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:49,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:49,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364177929] [2021-11-03 04:57:49,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364177929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:49,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298766933] [2021-11-03 04:57:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:49,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:49,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 04:57:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:49,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 04:57:49,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:50,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:50,198 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 24 treesize of output 20 [2021-11-03 04:57:50,728 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:50,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298766933] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:50,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168026513] [2021-11-03 04:57:50,730 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:57:50,730 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:57:50,730 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:57:50,731 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:57:50,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:57:50,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:50,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:57:50,740 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:50,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:50,741 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:50,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:57:50,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:50,748 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_57|], 36=[|v_#valid_73|]} [2021-11-03 04:57:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:57:50,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:50,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:50,769 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,855 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:57:50,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:57:50,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:50,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:50,862 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:57:50,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:50,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:50,887 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:57:50,901 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,902 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:57:50,909 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:57:50,912 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:50,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:50,917 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:57:50,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:50,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:50,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:50,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:50,936 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:50,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:50,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:50,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:57:50,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:50,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,044 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,052 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:51,059 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:57:51,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:57:51,067 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:57:51,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:57:51,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:51,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:51,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:51,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:57:51,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:57:51,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:57:51,143 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,232 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:57:51,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:57:51,242 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:51,243 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:57:51,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,306 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:57:51,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:57:51,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:57:51,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:57:51,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:51,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:51,320 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,323 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:57:51,326 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,327 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:57:51,339 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:57:51,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:51,345 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 95 [2021-11-03 04:57:51,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,366 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-03 04:57:51,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-03 04:57:51,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:57:51,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:57:51,370 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,376 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.8 percent of original size [2021-11-03 04:57:51,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 04:57:51,378 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,379 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:90 [2021-11-03 04:57:51,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,434 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.4 percent of original size [2021-11-03 04:57:51,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:57:51,444 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:51,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-03 04:57:51,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-03 04:57:51,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-03 04:57:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:51,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,491 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:57:51,492 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 37 treesize of output 42 [2021-11-03 04:57:51,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:57:51,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:57:51,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,515 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:51,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:51,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,518 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,540 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,552 INFO L180 QuantifierPusher]: treesize reduction 82, result has 78.1 percent of original size [2021-11-03 04:57:51,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-03 04:57:51,557 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:51,558 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:382, output treesize:292 [2021-11-03 04:57:51,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,628 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:57:51,631 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:51,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:57:51,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,656 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:51,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:51,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,660 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:57:51,670 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,670 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:57:51,686 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:57:51,688 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:51,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:51,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:57:51,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:51,714 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:51,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:51,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:51,717 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:51,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:57:51,726 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:51,726 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:57:51,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:51,782 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:57:52,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:57:52,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:57:52,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 39 [2021-11-03 04:57:52,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638210934] [2021-11-03 04:57:52,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-03 04:57:52,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-03 04:57:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1535, Unknown=0, NotChecked=0, Total=2162 [2021-11-03 04:57:52,791 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 41 states, 40 states have (on average 2.025) internal successors, (81), 40 states have internal predecessors, (81), 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) [2021-11-03 04:57:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:53,338 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2021-11-03 04:57:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 04:57:53,339 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.025) internal successors, (81), 40 states have internal predecessors, (81), 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 27 [2021-11-03 04:57:53,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:53,339 INFO L225 Difference]: With dead ends: 60 [2021-11-03 04:57:53,339 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 04:57:53,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1195 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1101, Invalid=2559, Unknown=0, NotChecked=0, Total=3660 [2021-11-03 04:57:53,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 04:57:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2021-11-03 04:57:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 57 states have internal predecessors, (66), 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) [2021-11-03 04:57:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2021-11-03 04:57:53,344 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 27 [2021-11-03 04:57:53,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:53,345 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2021-11-03 04:57:53,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.025) internal successors, (81), 40 states have internal predecessors, (81), 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) [2021-11-03 04:57:53,348 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2021-11-03 04:57:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:57:53,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:53,349 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1] [2021-11-03 04:57:53,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:53,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:53,562 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:53,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2105854065, now seen corresponding path program 1 times [2021-11-03 04:57:53,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:53,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144135255] [2021-11-03 04:57:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:53,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:53,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:53,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144135255] [2021-11-03 04:57:53,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144135255] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:53,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256792423] [2021-11-03 04:57:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:53,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:53,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:53,682 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:53,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 04:57:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:53,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:57:53,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:53,907 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-03 04:57:53,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-03 04:57:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:54,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:54,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256792423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:54,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [536610737] [2021-11-03 04:57:54,369 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:57:54,370 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:57:54,370 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:57:54,370 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:57:54,370 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:57:54,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:57:54,381 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:57:54,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:57:54,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:54,387 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_59|], 36=[|v_#valid_74|]} [2021-11-03 04:57:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:57:54,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:54,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:54,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,507 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:57:54,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:57:54,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,518 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:54,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:57:54,521 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:57:54,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:54,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:57:54,544 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,564 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:57:54,570 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,570 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:57:54,577 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:57:54,580 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,581 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:54,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:57:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:54,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:54,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:54,605 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,626 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:57:54,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,634 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:57:54,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:57:54,730 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:57:54,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:57:54,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:57:54,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:57:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:57:54,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:57:54,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:57:54,798 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:54,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:57:54,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:54,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:57:54,826 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,884 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:57:54,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:57:54,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:54,893 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:57:54,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,961 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:57:54,963 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:57:54,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:57:54,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:57:54,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:54,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:57:54,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:54,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:57:54,978 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:54,978 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:57:54,988 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:57:54,990 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:54,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:54,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:54,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:57:55,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,014 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:55,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:55,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,017 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-03 04:57:55,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,025 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2021-11-03 04:57:55,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,097 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size [2021-11-03 04:57:55,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:55,108 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:57:55,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-03 04:57:55,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 04:57:55,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:57:55,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,145 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:55,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:55,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,148 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:55,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:55,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,175 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:57:55,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:57:55,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:57:55,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:57:55,179 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,212 INFO L180 QuantifierPusher]: treesize reduction 118, result has 70.9 percent of original size [2021-11-03 04:57:55,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:57:55,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:57:55,216 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:414, output treesize:288 [2021-11-03 04:57:55,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,258 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:57:55,260 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:55,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:57:55,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,286 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:55,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:55,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,294 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:57:55,297 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,298 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:57:55,307 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:57:55,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:57:55,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:57:55,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:57:55,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:55,332 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:57:55,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:57:55,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:57:55,336 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:57:55,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:57:55,353 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:57:55,353 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:57:55,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:57:55,403 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:57:56,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:57:56,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:57:56,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2021-11-03 04:57:56,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066187547] [2021-11-03 04:57:56,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:57:56,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:56,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:57:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:57:56,432 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-11-03 04:57:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:56,552 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2021-11-03 04:57:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:57:56,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 28 [2021-11-03 04:57:56,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:56,553 INFO L225 Difference]: With dead ends: 59 [2021-11-03 04:57:56,554 INFO L226 Difference]: Without dead ends: 59 [2021-11-03 04:57:56,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:57:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-03 04:57:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-11-03 04:57:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 58 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:57:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2021-11-03 04:57:56,557 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 28 [2021-11-03 04:57:56,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:56,558 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2021-11-03 04:57:56,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-11-03 04:57:56,558 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2021-11-03 04:57:56,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:57:56,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:56,559 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 4, 1, 1, 1] [2021-11-03 04:57:56,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:56,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:56,780 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:56,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:56,781 INFO L85 PathProgramCache]: Analyzing trace with hash -198507640, now seen corresponding path program 2 times [2021-11-03 04:57:56,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:56,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257322074] [2021-11-03 04:57:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:56,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 72 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:57,106 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:57,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257322074] [2021-11-03 04:57:57,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257322074] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:57,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931381059] [2021-11-03 04:57:57,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:57:57,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:57,108 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:57,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 04:57:57,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 04:57:57,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:57:57,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:57:57,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:57,363 INFO L354 Elim1Store]: treesize reduction 86, result has 21.1 percent of original size [2021-11-03 04:57:57,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 30 treesize of output 42 [2021-11-03 04:57:57,370 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 72 treesize of output 70 [2021-11-03 04:57:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-03 04:57:58,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:59,037 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-03 04:57:59,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931381059] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:59,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:57:59,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16, 5] total 26 [2021-11-03 04:57:59,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006798146] [2021-11-03 04:57:59,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:57:59,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:57:59,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:57:59,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-11-03 04:57:59,039 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-11-03 04:57:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:57:59,264 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2021-11-03 04:57:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:57:59,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 36 [2021-11-03 04:57:59,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:57:59,266 INFO L225 Difference]: With dead ends: 58 [2021-11-03 04:57:59,266 INFO L226 Difference]: Without dead ends: 58 [2021-11-03 04:57:59,267 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2021-11-03 04:57:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-03 04:57:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-03 04:57:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 57 states have internal predecessors, (62), 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) [2021-11-03 04:57:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-03 04:57:59,270 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 36 [2021-11-03 04:57:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:57:59,271 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-03 04:57:59,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-11-03 04:57:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-03 04:57:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:57:59,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:59,273 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 4, 4, 4, 1, 1, 1, 1, 1] [2021-11-03 04:57:59,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:57:59,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2021-11-03 04:57:59,490 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:57:59,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:59,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1858670848, now seen corresponding path program 1 times [2021-11-03 04:57:59,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:57:59,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213904046] [2021-11-03 04:57:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:59,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:57:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:57:59,563 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:57:59,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213904046] [2021-11-03 04:57:59,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213904046] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:57:59,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238546977] [2021-11-03 04:57:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:59,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:57:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:57:59,578 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:57:59,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 04:57:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:59,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:57:59,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:58:00,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:58:00,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238546977] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:00,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [472213476] [2021-11-03 04:58:00,189 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-03 04:58:00,189 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:00,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:00,190 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:00,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:00,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:00,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:00,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:00,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:00,208 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_62|], 36=[|v_#valid_77|]} [2021-11-03 04:58:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:00,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:00,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:00,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,333 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:00,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:00,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:00,337 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:00,338 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:00,357 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:00,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:00,360 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:00,374 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,374 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:00,379 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:00,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,383 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:00,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:58:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:00,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,404 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:00,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:00,405 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:00,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,421 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:58:00,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:00,534 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:58:00,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:58:00,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:58:00,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:58:00,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:58:00,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:00,617 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:00,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:00,636 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:00,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:00,640 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,696 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:58:00,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:00,702 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:00,702 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:58:00,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,768 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:00,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:00,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:00,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:00,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:00,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:00,778 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:00,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,784 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:00,792 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:00,793 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:00,796 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 95 [2021-11-03 04:58:00,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:00,814 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-03 04:58:00,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-03 04:58:00,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:00,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:00,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,821 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,823 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.8 percent of original size [2021-11-03 04:58:00,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 04:58:00,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,825 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:90 [2021-11-03 04:58:00,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,872 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.4 percent of original size [2021-11-03 04:58:00,878 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:00,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:00,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-03 04:58:00,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:00,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-03 04:58:00,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-03 04:58:00,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:00,925 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:00,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:00,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:00,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:00,929 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:00,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:00,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:00,958 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:00,959 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 37 treesize of output 42 [2021-11-03 04:58:00,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,961 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:00,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:00,962 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:00,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:00,987 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:00,997 INFO L180 QuantifierPusher]: treesize reduction 82, result has 78.1 percent of original size [2021-11-03 04:58:01,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-03 04:58:01,001 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:01,002 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:382, output treesize:292 [2021-11-03 04:58:01,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,060 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:01,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:01,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:01,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:01,093 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:01,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:01,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,095 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:01,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:01,097 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,101 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:01,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,107 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:01,120 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:01,122 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:01,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:01,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:01,149 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:01,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:01,150 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:01,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:01,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:01,161 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,162 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:01,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,272 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:01,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,275 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,279 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:01,283 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:01,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:01,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:01,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:01,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,296 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:01,300 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:01,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:01,303 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:01,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:01,310 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,312 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:01,314 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:01,315 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:01,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:01,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:01,320 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:01,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:01,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:01,332 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_63|], 6=[|v_#valid_78|]} [2021-11-03 04:58:01,344 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:01,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:01,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:01,376 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:01,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:01,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:01,379 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:01,380 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,390 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:01,390 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,392 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:01,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:01,401 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,457 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:01,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:01,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:01,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:01,461 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:01,471 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:01,475 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:01,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:01,478 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:01,478 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:01,484 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:02,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [472213476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:02,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:02,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7, 7] total 19 [2021-11-03 04:58:02,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549664621] [2021-11-03 04:58:02,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:58:02,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:02,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:58:02,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:58:02,506 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:02,903 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-11-03 04:58:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:58:02,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-03 04:58:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:02,905 INFO L225 Difference]: With dead ends: 68 [2021-11-03 04:58:02,905 INFO L226 Difference]: Without dead ends: 68 [2021-11-03 04:58:02,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2021-11-03 04:58:02,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-03 04:58:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 61. [2021-11-03 04:58:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 60 states have internal predecessors, (65), 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) [2021-11-03 04:58:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2021-11-03 04:58:02,908 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 37 [2021-11-03 04:58:02,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:02,909 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2021-11-03 04:58:02,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2021-11-03 04:58:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:58:02,910 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:02,910 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 5, 5, 4, 1, 1, 1] [2021-11-03 04:58:02,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:03,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:03,111 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:03,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:03,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1858769571, now seen corresponding path program 2 times [2021-11-03 04:58:03,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:03,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140982090] [2021-11-03 04:58:03,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:03,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:58:03,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:03,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140982090] [2021-11-03 04:58:03,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140982090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:03,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814412799] [2021-11-03 04:58:03,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:58:03,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:03,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:03,274 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:03,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 04:58:03,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-03 04:58:03,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:58:03,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:58:03,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:03,639 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-03 04:58:03,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-03 04:58:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-03 04:58:04,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-11-03 04:58:05,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814412799] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:05,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1816178461] [2021-11-03 04:58:05,074 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-03 04:58:05,075 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:05,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:05,075 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:05,075 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:05,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,080 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:05,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:05,082 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:05,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:05,086 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_65|], 36=[|v_#valid_79|]} [2021-11-03 04:58:05,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:05,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,106 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,182 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:05,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:05,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:05,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:05,188 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:05,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:05,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:05,208 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:05,218 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,219 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:05,222 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:05,225 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:05,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:58:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:05,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:05,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:05,248 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:05,259 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,259 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:58:05,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:58:05,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:05,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:58:05,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:58:05,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:58:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:05,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:05,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:05,394 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:58:05,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:05,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:05,414 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,455 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:58:05,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:05,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:05,461 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:58:05,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,517 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:05,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:05,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:05,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:05,527 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:05,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:05,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:05,533 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,533 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:05,541 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:05,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:05,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:58:05,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,571 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:05,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:05,572 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,574 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,577 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-03 04:58:05,579 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,579 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2021-11-03 04:58:05,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,616 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size [2021-11-03 04:58:05,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,623 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:05,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:05,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-03 04:58:05,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 04:58:05,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:05,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,661 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:05,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:05,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,662 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,663 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:05,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,696 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:05,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:05,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:05,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:05,698 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,716 INFO L180 QuantifierPusher]: treesize reduction 118, result has 70.9 percent of original size [2021-11-03 04:58:05,718 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:05,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:05,718 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:414, output treesize:288 [2021-11-03 04:58:05,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,767 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:05,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:05,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:05,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,794 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:05,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:05,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,796 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:05,802 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,802 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:05,810 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:05,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:05,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:05,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:05,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:05,839 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:05,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:05,845 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:05,847 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:05,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:05,854 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:05,854 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:05,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:05,895 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:06,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:06,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:06,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 14 [2021-11-03 04:58:06,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861247541] [2021-11-03 04:58:06,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 04:58:06,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:06,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 04:58:06,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:06,710 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-11-03 04:58:07,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:07,006 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2021-11-03 04:58:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:58:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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 37 [2021-11-03 04:58:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:07,008 INFO L225 Difference]: With dead ends: 65 [2021-11-03 04:58:07,009 INFO L226 Difference]: Without dead ends: 65 [2021-11-03 04:58:07,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2021-11-03 04:58:07,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-03 04:58:07,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2021-11-03 04:58:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 63 states have internal predecessors, (68), 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) [2021-11-03 04:58:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-11-03 04:58:07,013 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 37 [2021-11-03 04:58:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:07,014 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-11-03 04:58:07,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2021-11-03 04:58:07,014 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-11-03 04:58:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:58:07,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:07,016 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:07,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:07,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:07,241 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash -362373350, now seen corresponding path program 1 times [2021-11-03 04:58:07,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:07,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277966836] [2021-11-03 04:58:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:07,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-03 04:58:07,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:07,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277966836] [2021-11-03 04:58:07,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277966836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:07,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:07,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:58:07,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759214263] [2021-11-03 04:58:07,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:58:07,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:58:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:07,289 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-03 04:58:07,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:07,325 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-11-03 04:58:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:07,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 46 [2021-11-03 04:58:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:07,327 INFO L225 Difference]: With dead ends: 63 [2021-11-03 04:58:07,327 INFO L226 Difference]: Without dead ends: 63 [2021-11-03 04:58:07,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:07,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-03 04:58:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-11-03 04:58:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 62 states have internal predecessors, (67), 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) [2021-11-03 04:58:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2021-11-03 04:58:07,330 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 46 [2021-11-03 04:58:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:07,331 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2021-11-03 04:58:07,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-03 04:58:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2021-11-03 04:58:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:58:07,332 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:07,332 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:07,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-11-03 04:58:07,332 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:07,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash -362373349, now seen corresponding path program 1 times [2021-11-03 04:58:07,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:07,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653822174] [2021-11-03 04:58:07,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:07,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-11-03 04:58:07,412 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:07,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653822174] [2021-11-03 04:58:07,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653822174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:07,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913025194] [2021-11-03 04:58:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:07,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:07,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:07,413 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:07,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 04:58:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:07,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:58:07,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-11-03 04:58:07,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-11-03 04:58:08,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913025194] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:08,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1237021573] [2021-11-03 04:58:08,099 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-03 04:58:08,099 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:08,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:08,100 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:08,100 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:08,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:08,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:08,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:08,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:08,118 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_67|], 36=[|v_#valid_81|]} [2021-11-03 04:58:08,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:08,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,141 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,243 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:08,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:08,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:08,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:08,249 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:08,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:08,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:08,273 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,279 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:08,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,285 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:08,290 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:08,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:08,297 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:58:08,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:58:08,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:08,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:08,319 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,324 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,326 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:58:08,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:58:08,327 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,328 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:58:08,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:58:08,431 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:08,439 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:58:08,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:58:08,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:58:08,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:58:08,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:08,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:08,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:08,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:08,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:08,511 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,568 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:58:08,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:08,575 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:08,575 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:58:08,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,648 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:08,650 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:08,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:08,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:08,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:08,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:08,662 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:08,667 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,667 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:08,676 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:08,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:08,683 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 95 [2021-11-03 04:58:08,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:08,704 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-03 04:58:08,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-03 04:58:08,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:08,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:08,707 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,713 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.8 percent of original size [2021-11-03 04:58:08,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 04:58:08,715 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,715 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:90 [2021-11-03 04:58:08,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,757 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.4 percent of original size [2021-11-03 04:58:08,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,775 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:08,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,777 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:08,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-03 04:58:08,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-03 04:58:08,794 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-03 04:58:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:08,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:08,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:08,834 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:08,834 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 37 treesize of output 42 [2021-11-03 04:58:08,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:08,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:08,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:08,861 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:08,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:08,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,864 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,864 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,891 INFO L180 QuantifierPusher]: treesize reduction 82, result has 78.1 percent of original size [2021-11-03 04:58:08,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-03 04:58:08,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:08,896 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:382, output treesize:292 [2021-11-03 04:58:08,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,947 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:08,950 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:08,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:08,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:08,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:08,978 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:08,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:08,979 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:08,981 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:08,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:08,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:08,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:08,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:09,000 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:09,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:09,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:09,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:09,031 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:09,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:09,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:09,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:09,034 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,038 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:09,041 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,042 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:09,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,148 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:09,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,154 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,156 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:09,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:09,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:09,162 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:09,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:09,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,172 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:09,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:09,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:09,180 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:09,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:09,188 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,191 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,191 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:09,193 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:09,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:09,196 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:09,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:09,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:09,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:09,213 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_68|], 6=[|v_#valid_82|]} [2021-11-03 04:58:09,224 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:09,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,226 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,261 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:09,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:09,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:09,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:09,266 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,278 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:09,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,280 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,292 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:09,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:09,294 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,352 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:09,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:09,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:09,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:09,357 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,371 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:09,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:09,375 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,376 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:09,382 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-03 04:58:09,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,385 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:09,389 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 203 [2021-11-03 04:58:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:09,412 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:09,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 42 [2021-11-03 04:58:09,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:09,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:09,415 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,427 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:09,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-03 04:58:09,430 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,431 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:204, output treesize:197 [2021-11-03 04:58:09,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,517 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,518 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 04:58:09,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:09,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-03 04:58:09,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-03 04:58:09,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-03 04:58:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:09,587 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:09,588 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 69 [2021-11-03 04:58:09,588 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:09,591 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:09,592 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:09,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:09,618 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:09,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:09,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:09,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:09,621 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,699 INFO L180 QuantifierPusher]: treesize reduction 100, result has 83.7 percent of original size [2021-11-03 04:58:09,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 512 [2021-11-03 04:58:09,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:09,711 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:620, output treesize:512 [2021-11-03 04:58:09,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,801 INFO L180 QuantifierPusher]: treesize reduction 42, result has 79.6 percent of original size [2021-11-03 04:58:09,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:09,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:09,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-03 04:58:09,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:09,834 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:09,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:09,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:09,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:09,838 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:09,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:09,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 04:58:09,850 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:09,850 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:151 [2021-11-03 04:58:09,858 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:11,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:11,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:11,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-03 04:58:11,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934001200] [2021-11-03 04:58:11,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:58:11,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:58:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:11,186 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2021-11-03 04:58:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:11,233 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2021-11-03 04:58:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:58:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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 46 [2021-11-03 04:58:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:11,234 INFO L225 Difference]: With dead ends: 75 [2021-11-03 04:58:11,234 INFO L226 Difference]: Without dead ends: 75 [2021-11-03 04:58:11,234 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-03 04:58:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-03 04:58:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 74 states have internal predecessors, (79), 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) [2021-11-03 04:58:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-11-03 04:58:11,237 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 46 [2021-11-03 04:58:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:11,238 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-11-03 04:58:11,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2021-11-03 04:58:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-11-03 04:58:11,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 04:58:11,240 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:11,240 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:11,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable203 [2021-11-03 04:58:11,445 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -705230437, now seen corresponding path program 2 times [2021-11-03 04:58:11,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:11,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004473650] [2021-11-03 04:58:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:11,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 108 proven. 39 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-03 04:58:11,762 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:11,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004473650] [2021-11-03 04:58:11,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004473650] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:11,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025729389] [2021-11-03 04:58:11,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:58:11,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:11,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:11,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:11,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 04:58:12,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 04:58:12,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:58:12,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:58:12,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:12,171 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-03 04:58:12,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-03 04:58:12,563 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 04:58:12,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-03 04:58:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:12,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:13,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025729389] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:13,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:58:13,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14, 4] total 22 [2021-11-03 04:58:13,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297047256] [2021-11-03 04:58:13,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:58:13,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:13,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:58:13,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:58:13,493 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-11-03 04:58:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:13,584 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2021-11-03 04:58:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:58:13,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 58 [2021-11-03 04:58:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:13,585 INFO L225 Difference]: With dead ends: 74 [2021-11-03 04:58:13,585 INFO L226 Difference]: Without dead ends: 74 [2021-11-03 04:58:13,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2021-11-03 04:58:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-03 04:58:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-03 04:58:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 65 states have (on average 1.2) internal successors, (78), 73 states have internal predecessors, (78), 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) [2021-11-03 04:58:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2021-11-03 04:58:13,590 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 58 [2021-11-03 04:58:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:13,590 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2021-11-03 04:58:13,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-11-03 04:58:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2021-11-03 04:58:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:58:13,592 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:13,592 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1] [2021-11-03 04:58:13,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:13,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-11-03 04:58:13,805 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:13,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:13,806 INFO L85 PathProgramCache]: Analyzing trace with hash -387307072, now seen corresponding path program 1 times [2021-11-03 04:58:13,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:13,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103021756] [2021-11-03 04:58:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:13,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:13,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:13,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103021756] [2021-11-03 04:58:13,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103021756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:13,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:13,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:58:13,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527161376] [2021-11-03 04:58:13,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:58:13,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:58:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:13,861 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2021-11-03 04:58:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:13,881 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2021-11-03 04:58:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 59 [2021-11-03 04:58:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:13,883 INFO L225 Difference]: With dead ends: 73 [2021-11-03 04:58:13,883 INFO L226 Difference]: Without dead ends: 73 [2021-11-03 04:58:13,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-03 04:58:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-03 04:58:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 72 states have internal predecessors, (77), 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) [2021-11-03 04:58:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2021-11-03 04:58:13,886 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 59 [2021-11-03 04:58:13,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:13,886 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2021-11-03 04:58:13,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2021-11-03 04:58:13,887 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2021-11-03 04:58:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 04:58:13,891 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:13,891 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1] [2021-11-03 04:58:13,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-11-03 04:58:13,891 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash -387307071, now seen corresponding path program 1 times [2021-11-03 04:58:13,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:13,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082939609] [2021-11-03 04:58:13,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:13,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:13,996 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:13,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082939609] [2021-11-03 04:58:13,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082939609] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:13,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995104664] [2021-11-03 04:58:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:13,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:13,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:14,002 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:14,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 04:58:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:14,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:58:14,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:14,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 04:58:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:14,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:14,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995104664] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:14,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [375561067] [2021-11-03 04:58:14,895 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-03 04:58:14,895 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:14,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:14,896 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:14,896 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:14,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:14,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:14,919 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:14,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:14,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:14,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:14,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:14,925 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_74|], 36=[|v_#valid_85|]} [2021-11-03 04:58:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:14,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:14,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:14,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:14,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:14,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:14,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:14,997 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:14,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:14,998 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:15,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:15,001 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,005 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:15,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:15,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:15,019 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:15,043 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,044 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:15,048 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:15,050 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:15,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:58:15,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:15,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:15,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:15,102 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:15,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,115 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:58:15,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:58:15,200 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:15,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:58:15,207 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:58:15,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:58:15,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:58:15,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:15,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:15,257 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:15,274 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:15,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:15,278 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,321 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:58:15,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:15,327 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:15,328 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:58:15,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,391 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:15,393 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:15,395 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:15,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:15,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:15,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:15,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:15,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,412 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:15,419 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:15,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:15,429 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 95 [2021-11-03 04:58:15,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,447 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-03 04:58:15,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-03 04:58:15,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:15,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-03 04:58:15,450 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,455 INFO L180 QuantifierPusher]: treesize reduction 3, result has 96.8 percent of original size [2021-11-03 04:58:15,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 04:58:15,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:90 [2021-11-03 04:58:15,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,490 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.4 percent of original size [2021-11-03 04:58:15,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:15,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:15,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-03 04:58:15,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-03 04:58:15,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-03 04:58:15,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,534 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:15,534 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 37 treesize of output 42 [2021-11-03 04:58:15,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:15,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:15,537 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,581 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:15,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:15,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,584 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,613 INFO L180 QuantifierPusher]: treesize reduction 82, result has 78.1 percent of original size [2021-11-03 04:58:15,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-03 04:58:15,618 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:15,618 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:382, output treesize:292 [2021-11-03 04:58:15,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,697 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:15,701 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:15,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:15,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,726 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:15,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:15,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,728 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,729 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,733 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:15,737 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,738 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:15,750 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:15,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:15,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:15,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:15,778 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:15,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:15,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:15,781 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:15,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,789 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:15,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:15,890 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:15,891 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,895 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:15,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:15,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:15,904 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:15,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:15,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,917 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:15,919 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:15,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:15,923 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:15,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:15,931 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:15,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:15,936 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:15,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,938 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:15,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:15,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:15,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:15,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:15,958 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_75|], 6=[|v_#valid_86|]} [2021-11-03 04:58:15,971 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:15,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:15,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:15,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,983 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:15,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:15,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:15,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:15,985 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:15,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:15,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,011 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:16,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:16,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:16,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:16,015 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,024 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:16,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:16,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:16,026 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,075 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:16,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:16,076 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:16,079 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:16,079 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,087 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:16,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:16,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,088 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:16,093 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-03 04:58:16,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:16,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-03 04:58:16,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:16,120 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:16,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:16,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:16,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:16,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 04:58:16,136 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,137 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:228, output treesize:224 [2021-11-03 04:58:16,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,220 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 04:58:16,222 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:16,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 401 [2021-11-03 04:58:16,228 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-11-03 04:58:16,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-03 04:58:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:16,274 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:16,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:16,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:16,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:16,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:16,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:16,315 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:16,316 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 79 [2021-11-03 04:58:16,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,318 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:16,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:16,319 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,380 INFO L180 QuantifierPusher]: treesize reduction 136, result has 78.9 percent of original size [2021-11-03 04:58:16,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 508 [2021-11-03 04:58:16,389 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:16,389 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:652, output treesize:508 [2021-11-03 04:58:16,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,487 INFO L180 QuantifierPusher]: treesize reduction 42, result has 79.6 percent of original size [2021-11-03 04:58:16,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:16,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:16,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-03 04:58:16,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:16,518 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:16,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:16,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:16,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:16,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:16,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:16,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 04:58:16,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:16,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:151 [2021-11-03 04:58:16,541 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:17,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:17,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:17,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-03 04:58:17,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254941334] [2021-11-03 04:58:17,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:58:17,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:58:17,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:58:17,928 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-11-03 04:58:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:18,019 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2021-11-03 04:58:18,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:58:18,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 59 [2021-11-03 04:58:18,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:18,020 INFO L225 Difference]: With dead ends: 82 [2021-11-03 04:58:18,021 INFO L226 Difference]: Without dead ends: 82 [2021-11-03 04:58:18,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:58:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-03 04:58:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-11-03 04:58:18,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.1891891891891893) internal successors, (88), 81 states have internal predecessors, (88), 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) [2021-11-03 04:58:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2021-11-03 04:58:18,024 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 59 [2021-11-03 04:58:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:18,025 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2021-11-03 04:58:18,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-11-03 04:58:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2021-11-03 04:58:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:58:18,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:18,026 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:18,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:18,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:18,227 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:18,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1980845717, now seen corresponding path program 1 times [2021-11-03 04:58:18,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:18,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022207026] [2021-11-03 04:58:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:18,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:18,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:18,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022207026] [2021-11-03 04:58:18,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022207026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:18,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269918338] [2021-11-03 04:58:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:18,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:18,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:18,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:18,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 04:58:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:18,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:58:18,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:19,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:19,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269918338] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:19,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1305315362] [2021-11-03 04:58:19,183 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-03 04:58:19,184 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:19,184 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:19,184 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:19,184 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:19,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:19,195 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:19,197 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:19,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:19,201 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_77|], 36=[|v_#valid_89|]} [2021-11-03 04:58:19,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:19,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,287 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:19,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:19,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:19,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:19,291 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,297 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:19,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:19,313 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:19,313 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,318 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:19,322 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,323 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:19,327 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:19,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:19,332 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:58:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:58:19,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:19,350 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:19,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,357 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,359 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:58:19,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:58:19,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,363 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:58:19,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,418 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:19,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:58:19,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:58:19,434 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:58:19,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:58:19,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:58:19,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:19,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:19,487 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:19,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:19,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:19,512 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,535 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,542 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:58:19,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:19,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:19,546 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:58:19,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,590 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:19,592 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,592 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:19,594 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:19,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:19,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:19,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:19,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:19,611 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,611 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:19,620 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:19,622 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:19,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:58:19,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,645 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:19,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:19,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,650 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,655 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-03 04:58:19,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2021-11-03 04:58:19,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,704 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size [2021-11-03 04:58:19,709 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,712 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:19,714 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:19,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-03 04:58:19,717 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 04:58:19,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:19,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,748 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:19,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:19,750 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,751 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:19,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,780 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:19,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:19,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:19,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:19,784 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,812 INFO L180 QuantifierPusher]: treesize reduction 118, result has 70.9 percent of original size [2021-11-03 04:58:19,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:19,816 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:19,817 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:414, output treesize:288 [2021-11-03 04:58:19,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,854 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:19,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:19,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:19,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,899 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:19,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:19,900 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,902 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:19,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:19,916 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:19,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:19,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,919 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:19,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:19,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:19,942 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:19,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:19,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:19,945 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:19,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:19,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:19,953 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:19,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:19,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,029 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:20,030 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,034 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,036 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:20,038 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:20,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:20,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:20,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:20,045 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,049 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,051 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:20,053 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,053 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:20,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:20,056 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:20,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:20,063 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,064 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,065 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:20,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:20,068 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,068 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:20,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:20,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:20,073 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:20,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:20,085 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_78|], 6=[|v_#valid_90|]} [2021-11-03 04:58:20,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,114 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:20,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:20,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:20,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:20,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,133 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:20,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,135 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,145 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:20,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,147 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,154 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:20,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:20,156 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,201 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:20,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:20,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:20,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:20,203 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,212 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,215 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:20,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:20,218 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,219 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:20,223 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-03 04:58:20,226 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:20,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-03 04:58:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,244 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:20,249 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:20,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:20,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:20,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:20,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 04:58:20,261 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,261 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:228, output treesize:224 [2021-11-03 04:58:20,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,321 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,321 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:20,323 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-03 04:58:20,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 401 [2021-11-03 04:58:20,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-11-03 04:58:20,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-03 04:58:20,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:20,394 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:20,395 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 79 [2021-11-03 04:58:20,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:20,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:20,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:20,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:20,426 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:20,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:20,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:20,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:20,434 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,474 INFO L180 QuantifierPusher]: treesize reduction 136, result has 78.9 percent of original size [2021-11-03 04:58:20,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 508 [2021-11-03 04:58:20,479 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:20,480 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:652, output treesize:508 [2021-11-03 04:58:20,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,567 INFO L180 QuantifierPusher]: treesize reduction 42, result has 79.6 percent of original size [2021-11-03 04:58:20,569 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,571 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:20,572 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-03 04:58:20,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:20,598 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:20,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:20,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:20,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:20,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 04:58:20,613 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,614 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:151 [2021-11-03 04:58:20,622 INFO L180 QuantifierPusher]: treesize reduction 46, result has 69.9 percent of original size [2021-11-03 04:58:20,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:20,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:20,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 04:58:20,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 04:58:20,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-03 04:58:20,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-03 04:58:20,639 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:20,644 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:20,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-03 04:58:20,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:20,649 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:99 [2021-11-03 04:58:20,656 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:22,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:22,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:22,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-03 04:58:22,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574278159] [2021-11-03 04:58:22,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:58:22,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:22,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:58:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:58:22,167 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2021-11-03 04:58:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:22,209 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2021-11-03 04:58:22,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:58:22,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 62 [2021-11-03 04:58:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:22,210 INFO L225 Difference]: With dead ends: 87 [2021-11-03 04:58:22,210 INFO L226 Difference]: Without dead ends: 87 [2021-11-03 04:58:22,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:58:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-03 04:58:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-11-03 04:58:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 85 states have internal predecessors, (91), 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) [2021-11-03 04:58:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-11-03 04:58:22,215 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 62 [2021-11-03 04:58:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:22,216 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-11-03 04:58:22,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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) [2021-11-03 04:58:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-11-03 04:58:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:58:22,217 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:22,218 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 5, 5, 4, 1, 1, 1, 1] [2021-11-03 04:58:22,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:22,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable312 [2021-11-03 04:58:22,441 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:22,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:22,442 INFO L85 PathProgramCache]: Analyzing trace with hash 884626779, now seen corresponding path program 2 times [2021-11-03 04:58:22,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:22,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633134151] [2021-11-03 04:58:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:22,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-03 04:58:22,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:22,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633134151] [2021-11-03 04:58:22,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633134151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:22,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915501883] [2021-11-03 04:58:22,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:58:22,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:22,573 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:22,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 04:58:23,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-03 04:58:23,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:58:23,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:58:23,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:23,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 04:58:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-03 04:58:23,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-11-03 04:58:23,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915501883] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:23,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1962169031] [2021-11-03 04:58:23,969 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-03 04:58:23,969 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:23,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:23,970 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:23,970 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:23,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:23,976 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:23,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:23,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:23,978 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:23,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:23,979 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:23,979 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:23,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:23,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:23,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:23,985 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_81|], 36=[|v_#valid_93|]} [2021-11-03 04:58:23,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:23,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:23,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:24,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,103 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:24,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:24,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:24,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:24,108 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:24,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:24,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:24,128 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:24,141 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,142 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:24,145 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:24,147 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,148 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:24,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 04:58:24,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:24,164 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:24,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:24,167 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:24,178 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,179 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:201, output treesize:193 [2021-11-03 04:58:24,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,247 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,252 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:24,254 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,255 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 04:58:24,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-03 04:58:24,260 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 382 [2021-11-03 04:58:24,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-11-03 04:58:24,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:24,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:24,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:24,302 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-03 04:58:24,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:24,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-03 04:58:24,321 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,361 INFO L180 QuantifierPusher]: treesize reduction 112, result has 78.8 percent of original size [2021-11-03 04:58:24,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:24,364 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:24,365 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:545, output treesize:417 [2021-11-03 04:58:24,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,409 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:24,411 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:24,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:24,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:24,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,419 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:24,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:24,420 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:24,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,424 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:24,430 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:24,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:58:24,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,450 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:24,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:24,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,455 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-03 04:58:24,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2021-11-03 04:58:24,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,495 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size [2021-11-03 04:58:24,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:24,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-03 04:58:24,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 04:58:24,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:24,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,528 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:24,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:24,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:24,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:24,530 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,547 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:24,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:24,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,548 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,548 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,559 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,580 INFO L180 QuantifierPusher]: treesize reduction 118, result has 70.9 percent of original size [2021-11-03 04:58:24,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:24,583 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:24,584 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:414, output treesize:288 [2021-11-03 04:58:24,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,618 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:24,620 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:24,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,643 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:24,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:24,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,646 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:24,653 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,653 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:24,662 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:24,664 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,664 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:24,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:24,689 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:24,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:24,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,691 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:24,692 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,695 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,697 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:24,698 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,699 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:24,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,815 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:24,816 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,823 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,825 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:24,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:24,828 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:24,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:24,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,841 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:24,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:24,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:24,846 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:24,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:24,854 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,857 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,857 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:24,858 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:24,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:24,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:24,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:24,866 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:24,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:24,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:24,879 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_82|], 6=[|v_#valid_94|]} [2021-11-03 04:58:24,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:24,925 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:24,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:24,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:24,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:24,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,940 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:24,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,941 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,949 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:24,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,950 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,958 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:24,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:24,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:24,959 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:24,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:24,965 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,002 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:25,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:25,003 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:25,006 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,006 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:25,007 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,015 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:25,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:25,017 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,017 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:25,022 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-03 04:58:25,023 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,024 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:25,026 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 203 [2021-11-03 04:58:25,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:25,048 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:25,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 42 [2021-11-03 04:58:25,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:25,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,069 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:25,070 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,081 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:25,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-03 04:58:25,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:204, output treesize:197 [2021-11-03 04:58:25,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,171 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 04:58:25,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:25,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-03 04:58:25,179 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,187 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-03 04:58:25,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-03 04:58:25,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:25,243 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:25,244 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 69 [2021-11-03 04:58:25,244 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:25,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:25,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:25,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:25,269 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:25,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:25,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:25,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:25,272 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,314 INFO L180 QuantifierPusher]: treesize reduction 100, result has 83.7 percent of original size [2021-11-03 04:58:25,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 512 [2021-11-03 04:58:25,323 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:25,324 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:620, output treesize:512 [2021-11-03 04:58:25,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,400 INFO L180 QuantifierPusher]: treesize reduction 42, result has 79.6 percent of original size [2021-11-03 04:58:25,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:25,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:25,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-03 04:58:25,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:25,431 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:25,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:25,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:25,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:25,434 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:25,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:25,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 04:58:25,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:25,445 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:151 [2021-11-03 04:58:25,454 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:26,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:26,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:26,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-03 04:58:26,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622077233] [2021-11-03 04:58:26,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:58:26,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:26,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:58:26,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:26,890 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:26,988 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2021-11-03 04:58:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:58:26,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:58:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:26,991 INFO L225 Difference]: With dead ends: 85 [2021-11-03 04:58:26,991 INFO L226 Difference]: Without dead ends: 85 [2021-11-03 04:58:26,992 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2021-11-03 04:58:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-03 04:58:26,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-03 04:58:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 78 states have (on average 1.141025641025641) internal successors, (89), 84 states have internal predecessors, (89), 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) [2021-11-03 04:58:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2021-11-03 04:58:26,994 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 68 [2021-11-03 04:58:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:26,995 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2021-11-03 04:58:26,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2021-11-03 04:58:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 04:58:26,996 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:26,996 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:27,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:27,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable365 [2021-11-03 04:58:27,205 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:27,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2004401643, now seen corresponding path program 2 times [2021-11-03 04:58:27,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:27,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475920220] [2021-11-03 04:58:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:27,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:27,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:27,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475920220] [2021-11-03 04:58:27,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475920220] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:58:27,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160899663] [2021-11-03 04:58:27,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:58:27,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:27,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:27,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:27,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 04:58:28,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-03 04:58:28,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:58:28,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:58:28,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:28,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:58:28,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160899663] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:28,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1804539639] [2021-11-03 04:58:28,817 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-03 04:58:28,818 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:58:28,818 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:58:28,818 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:58:28,818 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:58:28,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,830 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:28,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,831 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-03 04:58:28,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:28,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 04:58:28,833 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:28,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-03 04:58:28,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-11-03 04:58:28,840 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_84|], 36=[|v_#valid_97|]} [2021-11-03 04:58:28,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-11-03 04:58:28,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:28,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:28,864 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:28,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:28,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,934 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-03 04:58:28,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 case distinctions, treesize of input 51 treesize of output 50 [2021-11-03 04:58:28,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:28,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-03 04:58:28,948 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:28,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:28,954 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:28,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2021-11-03 04:58:28,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:28,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-03 04:58:28,970 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:28,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:28,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,980 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:28,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:28,981 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:188, output treesize:165 [2021-11-03 04:58:28,985 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:28,988 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:28,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:28,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-03 04:58:28,992 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size 185 [2021-11-03 04:58:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-11-03 04:58:29,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:29,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-03 04:58:29,011 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,021 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-11-03 04:58:29,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-03 04:58:29,024 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,024 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:186, output treesize:175 [2021-11-03 04:58:29,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-03 04:58:29,104 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-03 04:58:29,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-11-03 04:58:29,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-11-03 04:58:29,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-03 04:58:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-03 04:58:29,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:29,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 04:58:29,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 69 [2021-11-03 04:58:29,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,221 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:29,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-03 04:58:29,223 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,266 INFO L180 QuantifierPusher]: treesize reduction 94, result has 81.6 percent of original size [2021-11-03 04:58:29,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-03 04:58:29,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:29,273 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:527, output treesize:417 [2021-11-03 04:58:29,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,331 INFO L180 QuantifierPusher]: treesize reduction 36, result has 69.7 percent of original size [2021-11-03 04:58:29,332 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-03 04:58:29,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-03 04:58:29,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:58:29,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:29,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-03 04:58:29,343 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-03 04:58:29,348 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,348 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:79, output treesize:75 [2021-11-03 04:58:29,356 INFO L180 QuantifierPusher]: treesize reduction 43, result has 74.9 percent of original size [2021-11-03 04:58:29,358 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-11-03 04:58:29,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,379 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:29,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:29,381 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,383 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-11-03 04:58:29,389 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,390 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:121, output treesize:117 [2021-11-03 04:58:29,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,434 INFO L180 QuantifierPusher]: treesize reduction 10, result has 96.6 percent of original size [2021-11-03 04:58:29,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:29,443 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-03 04:58:29,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-03 04:58:29,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,491 INFO L354 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2021-11-03 04:58:29,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:29,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:29,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:29,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,519 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:29,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:29,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,522 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,551 INFO L180 QuantifierPusher]: treesize reduction 118, result has 70.9 percent of original size [2021-11-03 04:58:29,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-03 04:58:29,555 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:29,556 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:414, output treesize:288 [2021-11-03 04:58:29,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,596 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:29,599 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:29,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,625 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:29,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:29,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:29,637 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,637 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:29,646 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.8 percent of original size [2021-11-03 04:58:29,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-03 04:58:29,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:29,676 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:29,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:29,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,678 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,678 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:29,679 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-03 04:58:29,686 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,687 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:121 [2021-11-03 04:58:29,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,775 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-03 04:58:29,777 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,783 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,783 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,784 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,784 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:29,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,786 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-03 04:58:29,788 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-03 04:58:29,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-11-03 04:58:29,794 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,801 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:29,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:29,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-03 04:58:29,806 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-03 04:58:29,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-11-03 04:58:29,814 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 04:58:29,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:29,821 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:58:29,822 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:29,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-11-03 04:58:29,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:29,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-03 04:58:29,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-11-03 04:58:29,839 INFO L446 ElimStorePlain]: Different costs {3=[|v_#length_85|], 6=[|v_#valid_98|]} [2021-11-03 04:58:29,852 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:29,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,854 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,864 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:29,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,865 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,866 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,866 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,867 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:29,900 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:29,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-03 04:58:29,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:29,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:29,904 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,913 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 04:58:29,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:58:29,915 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,969 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-03 04:58:29,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-03 04:58:29,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:29,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 04:58:29,973 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:29,983 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:29,988 INFO L180 QuantifierPusher]: treesize reduction 40, result has 80.4 percent of original size [2021-11-03 04:58:29,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-11-03 04:58:29,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:29,991 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:726, output treesize:164 [2021-11-03 04:58:29,997 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-03 04:58:29,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,000 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 04:58:30,004 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 203 [2021-11-03 04:58:30,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:30,026 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:30,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 42 [2021-11-03 04:58:30,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:30,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 04:58:30,031 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,042 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-11-03 04:58:30,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-03 04:58:30,045 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,046 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:204, output treesize:197 [2021-11-03 04:58:30,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,169 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,174 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 04:58:30,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-11-03 04:58:30,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-03 04:58:30,184 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-11-03 04:58:30,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 481 [2021-11-03 04:58:30,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:30,242 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:30,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2021-11-03 04:58:30,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:30,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-03 04:58:30,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:58:30,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:30,284 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:58:30,285 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 69 [2021-11-03 04:58:30,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:30,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-03 04:58:30,289 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,364 INFO L180 QuantifierPusher]: treesize reduction 100, result has 83.7 percent of original size [2021-11-03 04:58:30,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 512 [2021-11-03 04:58:30,375 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-03 04:58:30,375 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:620, output treesize:512 [2021-11-03 04:58:30,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,445 INFO L180 QuantifierPusher]: treesize reduction 42, result has 79.6 percent of original size [2021-11-03 04:58:30,447 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-03 04:58:30,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-03 04:58:30,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:58:30,480 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-03 04:58:30,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-11-03 04:58:30,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,482 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:30,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:58:30,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,488 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-03 04:58:30,493 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,493 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:151 [2021-11-03 04:58:30,499 INFO L180 QuantifierPusher]: treesize reduction 46, result has 69.9 percent of original size [2021-11-03 04:58:30,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:58:30,501 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-03 04:58:30,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-11-03 04:58:30,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 04:58:30,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-03 04:58:30,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-03 04:58:30,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:58:30,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:58:30,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-03 04:58:30,517 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 04:58:30,517 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:99 [2021-11-03 04:58:30,521 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:58:31,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:58:31,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:58:31,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2021-11-03 04:58:31,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783459828] [2021-11-03 04:58:31,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:58:31,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:58:31,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:31,903 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2021-11-03 04:58:31,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:31,955 INFO L93 Difference]: Finished difference Result 97 states and 101 transitions. [2021-11-03 04:58:31,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 04:58:31,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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 74 [2021-11-03 04:58:31,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:31,959 INFO L225 Difference]: With dead ends: 97 [2021-11-03 04:58:31,959 INFO L226 Difference]: Without dead ends: 97 [2021-11-03 04:58:31,959 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:58:31,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-03 04:58:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-03 04:58:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 96 states have internal predecessors, (101), 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) [2021-11-03 04:58:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 101 transitions. [2021-11-03 04:58:31,962 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 101 transitions. Word has length 74 [2021-11-03 04:58:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:31,963 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 101 transitions. [2021-11-03 04:58:31,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2021-11-03 04:58:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 101 transitions. [2021-11-03 04:58:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 04:58:31,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:31,964 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:31,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:32,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:32,173 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 13 more)] === [2021-11-03 04:58:32,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash -875296149, now seen corresponding path program 3 times [2021-11-03 04:58:32,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:32,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858758184] [2021-11-03 04:58:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:32,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:58:32,365 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:58:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:58:32,576 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:58:32,576 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:58:32,577 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-03 04:58:32,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-03 04:58:32,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-03 04:58:32,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-03 04:58:32,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-03 04:58:32,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-03 04:58:32,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-03 04:58:32,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-03 04:58:32,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-03 04:58:32,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-03 04:58:32,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-03 04:58:32,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-03 04:58:32,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-03 04:58:32,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-03 04:58:32,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-03 04:58:32,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-03 04:58:32,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:58:32,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2021-11-03 04:58:32,588 INFO L731 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:32,593 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:58:32,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:58:32 BoogieIcfgContainer [2021-11-03 04:58:32,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:58:32,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:58:32,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:58:32,749 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:58:32,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:57:39" (3/4) ... [2021-11-03 04:58:32,752 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 04:58:32,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:58:32,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:58:32,887 INFO L168 Benchmark]: Toolchain (without parser) took 54609.21 ms. Allocated memory was 113.2 MB in the beginning and 497.0 MB in the end (delta: 383.8 MB). Free memory was 83.3 MB in the beginning and 454.4 MB in the end (delta: -371.2 MB). Peak memory consumption was 295.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,887 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory is still 67.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:58:32,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.65 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 87.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,888 INFO L168 Benchmark]: Boogie Preprocessor took 57.10 ms. Allocated memory is still 113.2 MB. Free memory was 86.0 MB in the beginning and 84.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,888 INFO L168 Benchmark]: RCFGBuilder took 797.18 ms. Allocated memory is still 113.2 MB. Free memory was 84.7 MB in the beginning and 65.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,888 INFO L168 Benchmark]: TraceAbstraction took 53111.22 ms. Allocated memory was 113.2 MB in the beginning and 497.0 MB in the end (delta: 383.8 MB). Free memory was 65.1 MB in the beginning and 178.7 MB in the end (delta: -113.6 MB). Peak memory consumption was 271.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,889 INFO L168 Benchmark]: Witness Printer took 137.20 ms. Allocated memory is still 497.0 MB. Free memory was 178.7 MB in the beginning and 454.4 MB in the end (delta: -275.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:32,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory is still 67.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 418.65 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 87.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.10 ms. Allocated memory is still 113.2 MB. Free memory was 86.0 MB in the beginning and 84.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 797.18 ms. Allocated memory is still 113.2 MB. Free memory was 84.7 MB in the beginning and 65.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 53111.22 ms. Allocated memory was 113.2 MB in the beginning and 497.0 MB in the end (delta: 383.8 MB). Free memory was 65.1 MB in the beginning and 178.7 MB in the end (delta: -113.6 MB). Peak memory consumption was 271.6 MB. Max. memory is 16.1 GB. * Witness Printer took 137.20 ms. Allocated memory is still 497.0 MB. Free memory was 178.7 MB in the beginning and 454.4 MB in the end (delta: -275.8 MB). Peak memory consumption was 8.4 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: 38]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L6] static int array[10]; [L17] static int numbers2[10]; [L36] static int numbers4[10]; [L8] int i = 0; VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L9] array[i] = i [L8] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L8] COND FALSE !(i < 10) [L12] return array; [L16] int* numbers = getNumbers(); [L18] int i = 0; VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L19] numbers2[i] = numbers[i] [L18] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L18] COND FALSE !(i < 10) [L21] return numbers2; [L25] int* numbers = getNumbers2(); [L26] int numbers3[10]; [L27] int i = 0; VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] EXPR numbers[i] VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L28] numbers3[i] = numbers[i] [L27] ++i VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L27] COND FALSE !(i < 10) [L31] return numbers3; [L31] return numbers3; [L35] int* numbers = getNumbers3(); [L37] int i = 0; VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L37] COND TRUE i < 10 VAL [array={14:0}, numbers2={13:0}, numbers4={15:0}] [L38] numbers[i] - UnprovableResult [Line: 9]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 23, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 1047 SDslu, 729 SDs, 0 SdLazy, 1212 SolverSat, 204 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1748 GetRequests, 1401 SyntacticMatches, 13 SemanticMatches, 334 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=22, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 1409 NumberOfCodeBlocks, 1217 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 1844 ConstructedInterpolants, 101 QuantifiedInterpolants, 13292 SizeOfPredicates, 43 NumberOfNonLiveVariables, 2373 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 52 InterpolantComputations, 10 PerfectInterpolantSequences, 6203/6979 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 1295, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 8, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 24, TOOLS_POST_TIME[ms]: 931, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 24, TOOLS_QUANTIFIERELIM_TIME[ms]: 920, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 214, FLUID_QUERY_TIME[ms]: 1, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 100, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 225, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 18, DOMAIN_ISBOTTOM_APPLICATIONS: 8, DOMAIN_ISBOTTOM_TIME[ms]: 11, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 732, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 732, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 0, PATH_EXPR_TIME[ms]: 0, REGEX_TO_DAG_TIME[ms]: 0, DAG_COMPRESSION_TIME[ms]: 3, DAG_COMPRESSION_PROCESSED_NODES: 93, DAG_COMPRESSION_RETAINED_NODES: 31, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 04:58:32,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd0a25f3-5387-4b7f-a27f-215a838b60ba/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)