./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array17_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array17_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:13:05,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:13:05,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:13:05,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:13:05,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:13:05,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:13:05,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:13:05,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:13:05,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:13:05,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:13:05,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:13:06,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:13:06,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:13:06,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:13:06,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:13:06,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:13:06,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:13:06,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:13:06,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:13:06,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:13:06,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:13:06,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:13:06,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:13:06,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:13:06,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:13:06,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:13:06,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:13:06,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:13:06,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:13:06,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:13:06,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:13:06,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:13:06,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:13:06,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:13:06,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:13:06,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:13:06,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:13:06,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:13:06,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:13:06,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:13:06,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:13:06,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:13:06,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:13:06,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:13:06,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:13:06,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:13:06,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:13:06,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:13:06,084 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:13:06,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:13:06,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:13:06,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:13:06,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:13:06,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:13:06,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:13:06,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:13:06,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:13:06,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:13:06,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:13:06,087 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:13:06,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:13:06,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:13:06,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:13:06,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:13:06,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:13:06,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:13:06,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:13:06,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:13:06,091 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:13:06,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:13:06,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:13:06,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:13:06,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:13:06,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:13:06,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:13:06,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:13:06,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:13:06,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:13:06,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:13:06,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:13:06,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:13:06,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:13:06,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:13:06,094 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_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 [2021-11-20 23:13:06,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:13:06,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:13:06,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:13:06,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:13:06,372 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:13:06,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/array-patterns/array17_pattern.c [2021-11-20 23:13:06,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/data/f60bfac75/daa4766bef5d45378fd160751eaf7d72/FLAGcdc899112 [2021-11-20 23:13:06,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:13:06,936 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/sv-benchmarks/c/array-patterns/array17_pattern.c [2021-11-20 23:13:06,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/data/f60bfac75/daa4766bef5d45378fd160751eaf7d72/FLAGcdc899112 [2021-11-20 23:13:07,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/data/f60bfac75/daa4766bef5d45378fd160751eaf7d72 [2021-11-20 23:13:07,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:13:07,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:13:07,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:13:07,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:13:07,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:13:07,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200b960f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07, skipping insertion in model container [2021-11-20 23:13:07,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:13:07,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:13:07,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2021-11-20 23:13:07,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:13:07,617 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:13:07,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2021-11-20 23:13:07,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:13:07,686 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:13:07,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07 WrapperNode [2021-11-20 23:13:07,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:13:07,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:13:07,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:13:07,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:13:07,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,759 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2021-11-20 23:13:07,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:13:07,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:13:07,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:13:07,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:13:07,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:13:07,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:13:07,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:13:07,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:13:07,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (1/1) ... [2021-11-20 23:13:07,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:13:07,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:07,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:13:07,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:13:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:13:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:13:07,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:13:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:13:07,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:13:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:13:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:13:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:13:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:13:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:13:08,025 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:13:08,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:13:08,181 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:13:08,248 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:13:08,249 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 23:13:08,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:08 BoogieIcfgContainer [2021-11-20 23:13:08,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:13:08,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:13:08,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:13:08,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:13:08,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:13:07" (1/3) ... [2021-11-20 23:13:08,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a6ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:08, skipping insertion in model container [2021-11-20 23:13:08,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:07" (2/3) ... [2021-11-20 23:13:08,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a6ec26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:08, skipping insertion in model container [2021-11-20 23:13:08,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:08" (3/3) ... [2021-11-20 23:13:08,261 INFO L111 eAbstractionObserver]: Analyzing ICFG array17_pattern.c [2021-11-20 23:13:08,266 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:13:08,266 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:13:08,346 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:13:08,353 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:13:08,354 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:13:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:13:08,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:13:08,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:08,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:08,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:08,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2071670553, now seen corresponding path program 1 times [2021-11-20 23:13:08,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961317622] [2021-11-20 23:13:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:08,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:08,506 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:13:08,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851605791] [2021-11-20 23:13:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:08,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:08,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:08,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:08,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:13:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:08,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 23:13:08,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:13:08,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:08,668 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:08,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961317622] [2021-11-20 23:13:08,669 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:13:08,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851605791] [2021-11-20 23:13:08,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851605791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:08,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:08,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:13:08,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923995358] [2021-11-20 23:13:08,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:08,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:13:08,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:13:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:13:08,718 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:13:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:08,776 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-11-20 23:13:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:13:08,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-20 23:13:08,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:08,796 INFO L225 Difference]: With dead ends: 28 [2021-11-20 23:13:08,797 INFO L226 Difference]: Without dead ends: 18 [2021-11-20 23:13:08,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:13:08,807 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:08,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:13:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-20 23:13:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-20 23:13:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:13:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-11-20 23:13:08,870 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2021-11-20 23:13:08,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:08,872 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-20 23:13:08,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 23:13:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-20 23:13:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 23:13:08,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:08,877 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:08,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:09,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:09,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:09,092 INFO L85 PathProgramCache]: Analyzing trace with hash 916633033, now seen corresponding path program 1 times [2021-11-20 23:13:09,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:09,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110502714] [2021-11-20 23:13:09,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:09,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:09,111 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:13:09,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945549245] [2021-11-20 23:13:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:09,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:09,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:09,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:09,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:13:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:09,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:13:09,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:09,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 23:13:09,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:09,428 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:09,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110502714] [2021-11-20 23:13:09,429 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:13:09,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945549245] [2021-11-20 23:13:09,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945549245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:09,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:09,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:09,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398305536] [2021-11-20 23:13:09,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:09,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:09,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:09,436 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:09,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:09,497 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2021-11-20 23:13:09,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:09,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-11-20 23:13:09,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:09,498 INFO L225 Difference]: With dead ends: 23 [2021-11-20 23:13:09,498 INFO L226 Difference]: Without dead ends: 20 [2021-11-20 23:13:09,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:09,500 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:09,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:13:09,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-20 23:13:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-20 23:13:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:13:09,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-20 23:13:09,507 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 19 [2021-11-20 23:13:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:09,508 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-20 23:13:09,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:09,508 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-20 23:13:09,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 23:13:09,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:09,510 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:09,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:09,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:09,730 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:09,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1792495404, now seen corresponding path program 1 times [2021-11-20 23:13:09,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432178604] [2021-11-20 23:13:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:09,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:09,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:13:09,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612020365] [2021-11-20 23:13:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:09,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:09,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:09,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:09,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:13:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:09,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:13:09,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:13:09,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:09,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:09,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432178604] [2021-11-20 23:13:09,928 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:13:09,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612020365] [2021-11-20 23:13:09,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612020365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:09,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:09,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:13:09,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149064401] [2021-11-20 23:13:09,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:09,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:13:09,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:09,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:13:09,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:09,931 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:10,027 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2021-11-20 23:13:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:13:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-11-20 23:13:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:10,031 INFO L225 Difference]: With dead ends: 41 [2021-11-20 23:13:10,032 INFO L226 Difference]: Without dead ends: 25 [2021-11-20 23:13:10,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:13:10,036 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:10,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:13:10,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-20 23:13:10,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-20 23:13:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:13:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-11-20 23:13:10,050 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 22 [2021-11-20 23:13:10,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:10,052 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-11-20 23:13:10,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:10,055 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-20 23:13:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:13:10,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:10,056 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:10,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:10,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:10,257 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:10,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash -957199016, now seen corresponding path program 1 times [2021-11-20 23:13:10,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:10,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297635727] [2021-11-20 23:13:10,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:10,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:10,268 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:13:10,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451219661] [2021-11-20 23:13:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:10,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:10,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:10,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:10,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:13:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:10,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:13:10,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 23:13:10,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:13:10,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:13:10,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297635727] [2021-11-20 23:13:10,434 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:13:10,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451219661] [2021-11-20 23:13:10,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451219661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:13:10,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:13:10,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:13:10,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568283931] [2021-11-20 23:13:10,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:13:10,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:13:10,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:13:10,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:13:10,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:13:10,437 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:13:10,476 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2021-11-20 23:13:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:13:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2021-11-20 23:13:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:13:10,478 INFO L225 Difference]: With dead ends: 40 [2021-11-20 23:13:10,478 INFO L226 Difference]: Without dead ends: 23 [2021-11-20 23:13:10,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:13:10,479 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:13:10,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 29 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:13:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-20 23:13:10,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-20 23:13:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:13:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-11-20 23:13:10,486 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 24 [2021-11-20 23:13:10,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:13:10,486 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-11-20 23:13:10,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:13:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2021-11-20 23:13:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 23:13:10,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:13:10,487 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:13:10,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:13:10,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:10,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:13:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:13:10,711 INFO L85 PathProgramCache]: Analyzing trace with hash 566593900, now seen corresponding path program 1 times [2021-11-20 23:13:10,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:13:10,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609556726] [2021-11-20 23:13:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:10,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:13:10,721 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:13:10,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061316273] [2021-11-20 23:13:10,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:13:10,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:13:10,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:10,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:13:10,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:13:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:13:10,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-20 23:13:10,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:13:11,003 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 16 treesize of output 12 [2021-11-20 23:13:11,017 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 16 treesize of output 12 [2021-11-20 23:13:11,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 571 treesize of output 557 [2021-11-20 23:13:13,127 INFO L354 Elim1Store]: treesize reduction 5306, result has 10.8 percent of original size [2021-11-20 23:13:13,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 49 case distinctions, treesize of input 801 treesize of output 1261 [2021-11-20 23:13:38,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 142 [2021-11-20 23:13:38,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:39,062 INFO L354 Elim1Store]: treesize reduction 267, result has 1.1 percent of original size [2021-11-20 23:13:39,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 291 treesize of output 171 [2021-11-20 23:13:39,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:39,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:13:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:39,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:13:39,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 143 [2021-11-20 23:13:39,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:40,018 INFO L354 Elim1Store]: treesize reduction 153, result has 38.6 percent of original size [2021-11-20 23:13:40,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 570 treesize of output 529 [2021-11-20 23:13:40,654 INFO L354 Elim1Store]: treesize reduction 280, result has 16.9 percent of original size [2021-11-20 23:13:40,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 454 treesize of output 260 [2021-11-20 23:13:41,157 INFO L354 Elim1Store]: treesize reduction 23, result has 11.5 percent of original size [2021-11-20 23:13:41,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 39 [2021-11-20 23:13:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:13:41,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:29,347 WARN L227 SmtUtils]: Spent 26.78s on a formula simplification. DAG size of input: 82 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 23:14:52,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:52,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609556726] [2021-11-20 23:14:52,094 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:52,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061316273] [2021-11-20 23:14:52,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061316273] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:14:52,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1054919392] [2021-11-20 23:14:52,113 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:14:52,113 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:52,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:52,124 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:52,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:14:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,583 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-20 23:14:52,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 105 [2021-11-20 23:14:52,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:14:52,898 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:14:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,052 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:14:53,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 49 [2021-11-20 23:14:53,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,196 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:14:53,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:14:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:53,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 96 [2021-11-20 23:14:53,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 18 [2021-11-20 23:14:54,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,455 INFO L354 Elim1Store]: treesize reduction 122, result has 10.9 percent of original size [2021-11-20 23:14:54,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 284 treesize of output 316 [2021-11-20 23:14:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 42 [2021-11-20 23:14:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:54,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 39 [2021-11-20 23:14:56,167 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:14:56,178 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 23 treesize of output 19 [2021-11-20 23:14:56,382 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:14:56,396 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 23 treesize of output 19 [2021-11-20 23:14:57,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:14:57,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:57,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:58,974 INFO L354 Elim1Store]: treesize reduction 2651, result has 18.2 percent of original size [2021-11-20 23:14:58,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1170 [2021-11-20 23:14:59,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:59,845 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-20 23:14:59,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 206 treesize of output 122 [2021-11-20 23:14:59,906 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:00,117 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:00,262 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:00,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:00,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:00,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 83 [2021-11-20 23:15:01,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:01,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:01,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 84 [2021-11-20 23:15:01,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:01,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:01,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 109 [2021-11-20 23:15:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:02,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 81 [2021-11-20 23:15:02,620 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:02,778 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:02,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:02,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:02,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 101 [2021-11-20 23:15:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:03,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 129 [2021-11-20 23:15:03,598 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:04,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:04,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:04,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:04,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:05,005 INFO L354 Elim1Store]: treesize reduction 301, result has 18.6 percent of original size [2021-11-20 23:15:05,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 543 treesize of output 370 [2021-11-20 23:15:07,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:07,243 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:15:07,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 547 treesize of output 419 [2021-11-20 23:15:12,039 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:15:12,064 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:15:13,782 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:15:13,782 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:15:13,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-11-20 23:15:13,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410132864] [2021-11-20 23:15:13,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 23:15:13,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 23:15:13,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:15:13,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 23:15:13,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1056, Unknown=2, NotChecked=0, Total=1190 [2021-11-20 23:15:13,785 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:15:14,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:15:14,871 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2021-11-20 23:15:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:15:14,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2021-11-20 23:15:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:15:14,874 INFO L225 Difference]: With dead ends: 55 [2021-11-20 23:15:14,875 INFO L226 Difference]: Without dead ends: 52 [2021-11-20 23:15:14,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=153, Invalid=1251, Unknown=2, NotChecked=0, Total=1406 [2021-11-20 23:15:14,876 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:15:14,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 103 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 91 Unchecked, 0.1s Time] [2021-11-20 23:15:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-20 23:15:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2021-11-20 23:15:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 23:15:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2021-11-20 23:15:14,888 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 25 [2021-11-20 23:15:14,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:15:14,888 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2021-11-20 23:15:14,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 23:15:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2021-11-20 23:15:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:15:14,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:15:14,890 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:15:14,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:15:15,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:15,094 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:15:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:15:15,095 INFO L85 PathProgramCache]: Analyzing trace with hash 559534040, now seen corresponding path program 2 times [2021-11-20 23:15:15,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:15:15,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898819280] [2021-11-20 23:15:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:15:15,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:15:15,104 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:15:15,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796571159] [2021-11-20 23:15:15,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:15:15,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:15:15,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:15:15,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:15:15,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 23:15:15,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-20 23:15:15,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:15:15,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-20 23:15:15,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:15:15,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 490 [2021-11-20 23:15:16,152 INFO L354 Elim1Store]: treesize reduction 3519, result has 13.7 percent of original size [2021-11-20 23:15:16,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 22 case distinctions, treesize of input 734 treesize of output 1141 [2021-11-20 23:15:16,376 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:16,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,508 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:16,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 238 [2021-11-20 23:15:16,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:16,731 INFO L354 Elim1Store]: treesize reduction 197, result has 9.6 percent of original size [2021-11-20 23:15:16,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 216 treesize of output 127 [2021-11-20 23:15:17,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:17,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:17,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 52 [2021-11-20 23:15:17,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:17,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 49 [2021-11-20 23:15:17,188 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:15:17,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:15:17,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:17,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:17,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:15:17,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 55 [2021-11-20 23:15:17,433 INFO L354 Elim1Store]: treesize reduction 382, result has 14.2 percent of original size [2021-11-20 23:15:17,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 733 treesize of output 550 [2021-11-20 23:15:17,503 INFO L354 Elim1Store]: treesize reduction 405, result has 9.0 percent of original size [2021-11-20 23:15:17,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 635 treesize of output 563 [2021-11-20 23:15:22,047 INFO L354 Elim1Store]: treesize reduction 67, result has 38.5 percent of original size [2021-11-20 23:15:22,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 89 [2021-11-20 23:15:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:15:22,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:15:24,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:15:24,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 535 treesize of output 531 [2021-11-20 23:15:25,374 INFO L354 Elim1Store]: treesize reduction 3348, result has 21.1 percent of original size [2021-11-20 23:15:25,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 30 case distinctions, treesize of input 779 treesize of output 1413 [2021-11-20 23:15:26,262 INFO L354 Elim1Store]: treesize reduction 324, result has 27.2 percent of original size [2021-11-20 23:15:26,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1558 treesize of output 1392 [2021-11-20 23:15:27,456 INFO L354 Elim1Store]: treesize reduction 390, result has 33.4 percent of original size [2021-11-20 23:15:27,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1586 treesize of output 1408 [2021-11-20 23:15:28,543 INFO L354 Elim1Store]: treesize reduction 314, result has 29.4 percent of original size [2021-11-20 23:15:28,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1692 treesize of output 1373 [2021-11-20 23:15:29,964 INFO L354 Elim1Store]: treesize reduction 390, result has 33.4 percent of original size [2021-11-20 23:15:29,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1691 treesize of output 1389 [2021-11-20 23:17:13,487 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:17:13,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898819280] [2021-11-20 23:17:13,487 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:17:13,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796571159] [2021-11-20 23:17:13,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796571159] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:17:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [866999262] [2021-11-20 23:17:13,491 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:17:13,491 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:17:13,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:17:13,492 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:17:13,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:17:13,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:13,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:13,810 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:17:13,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:17:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:13,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:13,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 89 [2021-11-20 23:17:14,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-20 23:17:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:14,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88 [2021-11-20 23:17:14,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:14,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 14 [2021-11-20 23:17:15,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:15,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:15,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:15,596 INFO L354 Elim1Store]: treesize reduction 248, result has 19.7 percent of original size [2021-11-20 23:17:15,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 280 treesize of output 324 [2021-11-20 23:17:16,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:16,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:16,127 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-20 23:17:16,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 247 treesize of output 193 [2021-11-20 23:17:17,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:17,479 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 23 treesize of output 19 [2021-11-20 23:17:17,653 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:17,673 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 23 treesize of output 19 [2021-11-20 23:17:19,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:17:19,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:19,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:20,271 INFO L354 Elim1Store]: treesize reduction 2655, result has 18.1 percent of original size [2021-11-20 23:17:20,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1166 [2021-11-20 23:17:21,678 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:21,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:21,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:21,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:21,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 162 [2021-11-20 23:17:22,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:22,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,104 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:22,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 368 treesize of output 162 [2021-11-20 23:17:22,222 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:22,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:22,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:22,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 162 [2021-11-20 23:17:22,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:22,811 INFO L354 Elim1Store]: treesize reduction 85, result has 29.8 percent of original size [2021-11-20 23:17:22,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 379 treesize of output 193 [2021-11-20 23:17:23,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:23,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:23,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 158 [2021-11-20 23:17:23,586 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:23,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:23,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:23,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:23,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 158 [2021-11-20 23:17:23,886 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:24,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:24,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:24,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 158 [2021-11-20 23:17:24,687 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:24,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:24,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:24,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:24,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:24,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 158 [2021-11-20 23:17:25,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:25,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:25,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:25,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:25,251 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:25,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 364 treesize of output 1 [2021-11-20 23:17:25,984 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:26,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 417 treesize of output 179 [2021-11-20 23:17:26,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 417 treesize of output 179 [2021-11-20 23:17:26,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:26,964 INFO L354 Elim1Store]: treesize reduction 127, result has 0.8 percent of original size [2021-11-20 23:17:26,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 437 treesize of output 1 [2021-11-20 23:17:27,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:27,389 INFO L354 Elim1Store]: treesize reduction 349, result has 5.7 percent of original size [2021-11-20 23:17:27,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 422 treesize of output 202 [2021-11-20 23:17:28,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:28,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:28,147 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:17:28,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 402 treesize of output 179 [2021-11-20 23:17:28,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:28,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:28,490 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:28,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 402 treesize of output 179 [2021-11-20 23:17:29,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:29,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:29,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:29,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:29,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:29,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:29,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 183 [2021-11-20 23:17:30,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:30,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:30,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:30,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:30,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:30,250 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:17:30,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 406 treesize of output 183 [2021-11-20 23:17:31,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:31,523 INFO L354 Elim1Store]: treesize reduction 353, result has 4.6 percent of original size [2021-11-20 23:17:31,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 426 treesize of output 202 [2021-11-20 23:17:35,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:35,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:35,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:35,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:35,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 176 [2021-11-20 23:17:35,424 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:35,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:35,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:35,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:35,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 176 [2021-11-20 23:17:35,941 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:36,050 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:36,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:36,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:36,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:36,276 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:36,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 412 treesize of output 1 [2021-11-20 23:17:36,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:36,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:36,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 176 [2021-11-20 23:17:37,099 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:37,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,330 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:37,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 397 treesize of output 1 [2021-11-20 23:17:37,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:37,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 176 [2021-11-20 23:17:38,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,335 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:38,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 401 treesize of output 180 [2021-11-20 23:17:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:38,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 180 [2021-11-20 23:17:39,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:39,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:39,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:39,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:39,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 180 [2021-11-20 23:17:42,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,476 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:42,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 329 treesize of output 1 [2021-11-20 23:17:42,608 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:42,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:42,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:42,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 138 [2021-11-20 23:17:43,037 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:43,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:43,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 138 [2021-11-20 23:17:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:43,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 138 [2021-11-20 23:17:43,672 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:43,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:43,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:43,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 138 [2021-11-20 23:17:43,966 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:44,047 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:44,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:44,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,243 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:17:44,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 344 treesize of output 1 [2021-11-20 23:17:44,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:44,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:44,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 142 [2021-11-20 23:17:45,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:45,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:45,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:45,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 142 [2021-11-20 23:17:46,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:46,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:46,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:46,512 INFO L354 Elim1Store]: treesize reduction 93, result has 23.1 percent of original size [2021-11-20 23:17:46,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 333 treesize of output 169 [2021-11-20 23:17:47,233 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:52,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:52,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:52,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 110 [2021-11-20 23:17:53,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:53,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:53,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 110 [2021-11-20 23:17:53,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:53,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:53,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 114 [2021-11-20 23:17:54,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:55,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:55,125 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:17:55,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 353 treesize of output 155 [2021-11-20 23:17:56,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:56,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:56,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:56,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 151 [2021-11-20 23:17:56,930 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:57,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:57,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:57,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:57,237 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:17:57,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 349 treesize of output 151 [2021-11-20 23:17:59,221 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:17:59,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:59,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 339 treesize of output 148 [2021-11-20 23:17:59,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:17:59,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:17:59,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 148 [2021-11-20 23:18:00,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:00,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:00,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 152 [2021-11-20 23:18:00,854 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:01,919 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:02,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:02,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:02,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 291 treesize of output 130 [2021-11-20 23:18:02,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:02,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 130 [2021-11-20 23:18:03,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:03,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:03,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 134 [2021-11-20 23:18:07,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:07,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 131 [2021-11-20 23:18:08,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:08,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 279 treesize of output 127 [2021-11-20 23:18:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:08,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 127 [2021-11-20 23:18:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:08,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 149 [2021-11-20 23:18:09,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:09,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 145 [2021-11-20 23:18:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:09,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 145 [2021-11-20 23:18:09,538 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:09,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:09,795 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:09,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:09,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 148 [2021-11-20 23:18:10,094 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:10,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:10,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 148 [2021-11-20 23:18:10,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:10,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:10,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 326 treesize of output 152 [2021-11-20 23:18:10,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:10,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 107 [2021-11-20 23:18:11,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:11,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 107 [2021-11-20 23:18:11,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:11,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 111 [2021-11-20 23:18:12,341 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:12,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:12,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:12,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:12,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 155 [2021-11-20 23:18:12,899 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:13,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:13,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:13,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 158 [2021-11-20 23:18:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:13,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 155 [2021-11-20 23:18:13,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:13,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:13,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:13,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 158 [2021-11-20 23:18:14,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:14,135 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:14,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:14,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:14,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:14,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:14,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:14,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 162 [2021-11-20 23:18:14,890 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:15,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:15,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 159 [2021-11-20 23:18:15,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:15,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:15,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:15,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 176 [2021-11-20 23:18:16,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:16,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:16,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:16,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 365 treesize of output 173 [2021-11-20 23:18:16,655 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:17,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:17,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:17,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 176 [2021-11-20 23:18:17,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:17,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:17,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 173 [2021-11-20 23:18:17,911 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:18,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:18,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:18,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:18,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 177 [2021-11-20 23:18:18,332 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:18,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:18,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:18,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:18,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:18,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 180 [2021-11-20 23:18:19,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:19,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:19,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:19,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 180 [2021-11-20 23:18:19,498 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:19,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:19,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:19,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:19,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:19,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 399 treesize of output 183 [2021-11-20 23:18:20,175 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:20,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:20,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:20,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:20,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:20,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 375 treesize of output 176 [2021-11-20 23:18:20,840 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:21,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:21,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:21,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:21,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:21,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:21,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:21,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 179 [2021-11-20 23:18:21,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:21,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:21,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:21,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:21,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 390 treesize of output 176 [2021-11-20 23:18:22,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:22,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:22,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:22,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:22,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 410 treesize of output 179 [2021-11-20 23:18:23,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:23,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:23,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:23,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 139 [2021-11-20 23:18:23,327 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:23,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:23,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:23,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:23,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 142 [2021-11-20 23:18:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:24,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:24,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 135 [2021-11-20 23:18:24,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:24,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:24,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:24,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 138 [2021-11-20 23:18:25,380 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:25,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:25,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:25,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:25,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 138 [2021-11-20 23:18:25,519 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:25,649 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:25,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:25,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:25,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:25,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 135 [2021-11-20 23:18:26,681 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:26,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:26,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:26,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:26,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 162 [2021-11-20 23:18:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:27,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:27,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:27,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 158 [2021-11-20 23:18:27,591 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:27,803 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:28,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:28,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:28,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 158 [2021-11-20 23:18:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:29,109 INFO L354 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2021-11-20 23:18:29,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 399 treesize of output 183 [2021-11-20 23:18:30,346 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:30,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:30,852 INFO L354 Elim1Store]: treesize reduction 57, result has 26.9 percent of original size [2021-11-20 23:18:30,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 395 treesize of output 200 [2021-11-20 23:18:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:31,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:31,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:31,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:31,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 410 treesize of output 179 [2021-11-20 23:18:33,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:33,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:33,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:33,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 176 [2021-11-20 23:18:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:34,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 176 [2021-11-20 23:18:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:34,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:34,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 180 [2021-11-20 23:18:36,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:36,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:36,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 138 [2021-11-20 23:18:36,931 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 138 [2021-11-20 23:18:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,955 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:37,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 142 [2021-11-20 23:18:38,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:38,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 139 [2021-11-20 23:18:39,508 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:40,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:40,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:40,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 135 [2021-11-20 23:18:41,271 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:41,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:41,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 135 [2021-11-20 23:18:42,627 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:42,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:42,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:42,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 155 [2021-11-20 23:18:43,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:43,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:43,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:43,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 155 [2021-11-20 23:18:43,644 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:44,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 159 [2021-11-20 23:18:44,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:44,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:44,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 390 treesize of output 176 [2021-11-20 23:18:45,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:45,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 375 treesize of output 176 [2021-11-20 23:18:45,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:45,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 180 [2021-11-20 23:18:46,118 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:46,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 177 [2021-11-20 23:18:47,060 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:47,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:47,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:47,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 365 treesize of output 173 [2021-11-20 23:18:47,777 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:48,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:48,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:48,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 173 [2021-11-20 23:18:48,228 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:51,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:51,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 399 treesize of output 183 [2021-11-20 23:18:52,684 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:52,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:52,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:53,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 179 [2021-11-20 23:18:54,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:55,044 INFO L354 Elim1Store]: treesize reduction 164, result has 5.7 percent of original size [2021-11-20 23:18:55,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 446 treesize of output 216 [2021-11-20 23:18:55,936 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:56,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:56,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:56,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:56,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:56,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:56,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 426 treesize of output 203 [2021-11-20 23:18:57,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:57,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:57,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:18:57,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 207 [2021-11-20 23:18:57,677 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:18:58,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:18:58,294 INFO L354 Elim1Store]: treesize reduction 168, result has 3.4 percent of original size [2021-11-20 23:18:58,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 450 treesize of output 216 [2021-11-20 23:18:59,212 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:01,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:01,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:01,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:01,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:01,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 179 [2021-11-20 23:19:01,944 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:02,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:02,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:02,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:02,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 373 treesize of output 175 [2021-11-20 23:19:15,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:15,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:15,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:15,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:15,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:15,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:16,064 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:19:16,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1502 treesize of output 966 [2021-11-20 23:19:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:24,794 INFO L354 Elim1Store]: treesize reduction 301, result has 18.6 percent of original size [2021-11-20 23:19:24,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1150 treesize of output 695 [2021-11-20 23:19:28,707 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:19:28,727 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:19:31,129 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:19:31,129 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:19:31,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-11-20 23:19:31,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409062287] [2021-11-20 23:19:31,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 23:19:31,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 23:19:31,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:19:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 23:19:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1173, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 23:19:31,131 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. Second operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:19:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:19:31,631 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2021-11-20 23:19:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 23:19:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2021-11-20 23:19:31,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:19:31,633 INFO L225 Difference]: With dead ends: 52 [2021-11-20 23:19:31,633 INFO L226 Difference]: Without dead ends: 49 [2021-11-20 23:19:31,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2021-11-20 23:19:31,635 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:19:31,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 50 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 66 Unchecked, 0.1s Time] [2021-11-20 23:19:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-20 23:19:31,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2021-11-20 23:19:31,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 23:19:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-11-20 23:19:31,645 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 26 [2021-11-20 23:19:31,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:19:31,646 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-11-20 23:19:31,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:19:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2021-11-20 23:19:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 23:19:31,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:19:31,648 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:19:31,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:19:31,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 23:19:31,863 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:19:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:19:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash 372517715, now seen corresponding path program 3 times [2021-11-20 23:19:31,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:19:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75616495] [2021-11-20 23:19:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:19:31,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:19:31,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:19:31,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195544526] [2021-11-20 23:19:31,871 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 23:19:31,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:19:31,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:19:31,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:19:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 23:19:31,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 23:19:31,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:19:31,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:19:31,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:19:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:19:31,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:19:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 23:19:32,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:19:32,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75616495] [2021-11-20 23:19:32,065 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:19:32,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195544526] [2021-11-20 23:19:32,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195544526] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:19:32,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [618146185] [2021-11-20 23:19:32,068 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:19:32,068 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:19:32,069 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:19:32,069 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:19:32,069 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:19:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:32,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:32,351 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-20 23:19:32,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 105 [2021-11-20 23:19:32,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:32,454 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-20 23:19:32,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 39 [2021-11-20 23:19:32,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2021-11-20 23:19:32,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2021-11-20 23:19:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:32,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:32,685 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:19:32,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:19:33,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:33,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:33,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88 [2021-11-20 23:19:33,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:33,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 17 [2021-11-20 23:19:33,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:33,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:33,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:34,114 INFO L354 Elim1Store]: treesize reduction 224, result has 23.5 percent of original size [2021-11-20 23:19:34,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 280 treesize of output 328 [2021-11-20 23:19:35,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:35,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:35,167 INFO L354 Elim1Store]: treesize reduction 60, result has 4.8 percent of original size [2021-11-20 23:19:35,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 231 treesize of output 180 [2021-11-20 23:19:35,961 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:35,970 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 23 treesize of output 19 [2021-11-20 23:19:36,178 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:36,191 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 23 treesize of output 19 [2021-11-20 23:19:37,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:19:37,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:37,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:38,527 INFO L354 Elim1Store]: treesize reduction 2651, result has 18.2 percent of original size [2021-11-20 23:19:38,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1170 [2021-11-20 23:19:38,930 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:40,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,150 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-11-20 23:19:40,383 INFO L354 Elim1Store]: treesize reduction 320, result has 13.5 percent of original size [2021-11-20 23:19:40,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 221 [2021-11-20 23:19:40,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:41,201 INFO L354 Elim1Store]: treesize reduction 286, result has 22.7 percent of original size [2021-11-20 23:19:41,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 272 treesize of output 229 [2021-11-20 23:19:43,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:43,470 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:19:43,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 656 treesize of output 371 [2021-11-20 23:19:46,902 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:19:46,922 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:19:48,692 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:19:48,693 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:19:48,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-20 23:19:48,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531453718] [2021-11-20 23:19:48,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 23:19:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:19:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:19:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:19:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:19:48,694 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:19:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:19:49,083 INFO L93 Difference]: Finished difference Result 80 states and 100 transitions. [2021-11-20 23:19:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 23:19:49,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2021-11-20 23:19:49,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:19:49,087 INFO L225 Difference]: With dead ends: 80 [2021-11-20 23:19:49,087 INFO L226 Difference]: Without dead ends: 74 [2021-11-20 23:19:49,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:19:49,089 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 59 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:19:49,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 53 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:19:49,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-20 23:19:49,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2021-11-20 23:19:49,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 45 states have internal predecessors, (58), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 23:19:49,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2021-11-20 23:19:49,105 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 26 [2021-11-20 23:19:49,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:19:49,105 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2021-11-20 23:19:49,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:19:49,106 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2021-11-20 23:19:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:19:49,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:19:49,107 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:19:49,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 23:19:49,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:19:49,331 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:19:49,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:19:49,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1627711919, now seen corresponding path program 4 times [2021-11-20 23:19:49,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:19:49,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843343597] [2021-11-20 23:19:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:19:49,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:19:49,342 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:19:49,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806684966] [2021-11-20 23:19:49,342 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 23:19:49,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:19:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:19:49,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:19:49,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 23:19:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:19:49,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:19:49,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:19:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 23:19:49,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:19:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 23:19:49,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:19:49,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843343597] [2021-11-20 23:19:49,586 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:19:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806684966] [2021-11-20 23:19:49,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806684966] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:19:49,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [453328911] [2021-11-20 23:19:49,588 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:19:49,588 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:19:49,588 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:19:49,589 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:19:49,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:19:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:49,855 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-20 23:19:49,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 105 [2021-11-20 23:19:49,897 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:50,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:50,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:50,158 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:19:50,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 49 [2021-11-20 23:19:50,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:50,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:50,317 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:19:50,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:19:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:50,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:50,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2021-11-20 23:19:50,804 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:50,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:50,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 24 [2021-11-20 23:19:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:51,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,733 INFO L354 Elim1Store]: treesize reduction 120, result has 11.1 percent of original size [2021-11-20 23:19:51,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 312 [2021-11-20 23:19:51,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:51,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 43 [2021-11-20 23:19:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:52,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:52,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 40 [2021-11-20 23:19:53,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:53,384 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 23 treesize of output 19 [2021-11-20 23:19:53,579 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:19:53,590 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 23 treesize of output 19 [2021-11-20 23:19:54,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:19:54,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:54,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:55,649 INFO L354 Elim1Store]: treesize reduction 2646, result has 18.4 percent of original size [2021-11-20 23:19:55,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1175 [2021-11-20 23:19:56,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:56,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 49 [2021-11-20 23:19:56,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:56,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 46 [2021-11-20 23:19:59,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:19:59,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:59,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:59,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:59,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:59,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:19:59,606 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:19:59,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 120 [2021-11-20 23:20:00,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:00,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:00,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:00,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:00,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 55 [2021-11-20 23:20:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:01,504 INFO L244 Elim1Store]: Index analysis took 318 ms [2021-11-20 23:20:01,645 INFO L354 Elim1Store]: treesize reduction 275, result has 5.8 percent of original size [2021-11-20 23:20:01,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 209 treesize of output 99 [2021-11-20 23:20:03,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:03,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 52 [2021-11-20 23:20:03,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:03,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:03,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 77 [2021-11-20 23:20:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:04,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:04,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:04,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:04,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:04,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 80 [2021-11-20 23:20:05,666 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:06,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:06,614 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-11-20 23:20:06,762 INFO L354 Elim1Store]: treesize reduction 57, result has 26.9 percent of original size [2021-11-20 23:20:06,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 101 [2021-11-20 23:20:07,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:07,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 77 [2021-11-20 23:20:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:07,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 74 [2021-11-20 23:20:08,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:08,958 INFO L244 Elim1Store]: Index analysis took 133 ms [2021-11-20 23:20:09,820 INFO L354 Elim1Store]: treesize reduction 295, result has 20.3 percent of original size [2021-11-20 23:20:09,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 550 treesize of output 430 [2021-11-20 23:20:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:14,879 INFO L354 Elim1Store]: treesize reduction 320, result has 13.5 percent of original size [2021-11-20 23:20:14,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 517 treesize of output 376 [2021-11-20 23:20:18,508 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:20:18,531 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:20:20,517 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:20:20,517 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:20:20,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-20 23:20:20,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678364037] [2021-11-20 23:20:20,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 23:20:20,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:20:20,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:20:20,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:20:20,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:20:20,520 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:20:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:20:20,878 INFO L93 Difference]: Finished difference Result 109 states and 134 transitions. [2021-11-20 23:20:20,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 23:20:20,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 28 [2021-11-20 23:20:20,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:20:20,881 INFO L225 Difference]: With dead ends: 109 [2021-11-20 23:20:20,881 INFO L226 Difference]: Without dead ends: 85 [2021-11-20 23:20:20,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2021-11-20 23:20:20,884 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 46 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:20:20,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 53 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:20:20,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-20 23:20:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 68. [2021-11-20 23:20:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 54 states have internal predecessors, (70), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 23:20:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2021-11-20 23:20:20,906 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 28 [2021-11-20 23:20:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:20:20,906 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2021-11-20 23:20:20,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:20:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2021-11-20 23:20:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-20 23:20:20,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:20:20,908 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:20:20,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 23:20:21,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:20:21,115 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:20:21,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:20:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1494603675, now seen corresponding path program 5 times [2021-11-20 23:20:21,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:20:21,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955034979] [2021-11-20 23:20:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:20:21,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:20:21,122 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:20:21,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291268433] [2021-11-20 23:20:21,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:20:21,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:20:21,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:20:21,130 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:20:21,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 23:20:21,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-20 23:20:21,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:20:21,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:20:21,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:20:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 23:20:21,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:20:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 23:20:21,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:20:21,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955034979] [2021-11-20 23:20:21,453 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:20:21,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291268433] [2021-11-20 23:20:21,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291268433] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:20:21,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1103809262] [2021-11-20 23:20:21,456 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:20:21,456 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:20:21,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:20:21,457 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:20:21,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:20:21,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:21,761 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:20:21,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:20:21,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:21,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:21,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 89 [2021-11-20 23:20:21,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:21,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2021-11-20 23:20:22,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:22,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:22,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2021-11-20 23:20:22,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:22,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2021-11-20 23:20:23,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:23,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:23,244 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:23,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:23,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:23,328 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-20 23:20:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 316 [2021-11-20 23:20:24,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:24,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:24,342 INFO L354 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2021-11-20 23:20:24,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 253 treesize of output 203 [2021-11-20 23:20:25,250 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:25,278 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 23 treesize of output 19 [2021-11-20 23:20:25,542 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 23 treesize of output 19 [2021-11-20 23:20:25,557 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:27,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:20:27,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:27,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,202 INFO L354 Elim1Store]: treesize reduction 2638, result has 18.6 percent of original size [2021-11-20 23:20:29,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1183 [2021-11-20 23:20:29,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:29,982 INFO L354 Elim1Store]: treesize reduction 282, result has 23.8 percent of original size [2021-11-20 23:20:29,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 424 treesize of output 317 [2021-11-20 23:20:30,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:30,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:30,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:30,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:30,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:30,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,065 INFO L354 Elim1Store]: treesize reduction 301, result has 18.6 percent of original size [2021-11-20 23:20:31,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 323 treesize of output 240 [2021-11-20 23:20:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:32,053 INFO L354 Elim1Store]: treesize reduction 285, result has 23.0 percent of original size [2021-11-20 23:20:32,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 387 treesize of output 269 [2021-11-20 23:20:37,383 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:20:37,411 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:20:39,734 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:20:39,734 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:20:39,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-20 23:20:39,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094813584] [2021-11-20 23:20:39,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 23:20:39,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:20:39,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:20:39,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:20:39,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:20:39,736 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:20:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:20:39,992 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2021-11-20 23:20:39,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:20:39,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-11-20 23:20:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:20:39,995 INFO L225 Difference]: With dead ends: 97 [2021-11-20 23:20:39,995 INFO L226 Difference]: Without dead ends: 54 [2021-11-20 23:20:39,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2021-11-20 23:20:39,997 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 22 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:20:39,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 65 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:20:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-20 23:20:40,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2021-11-20 23:20:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 23:20:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2021-11-20 23:20:40,012 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 29 [2021-11-20 23:20:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:20:40,012 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-11-20 23:20:40,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 23:20:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2021-11-20 23:20:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 23:20:40,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:20:40,014 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:20:40,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 23:20:40,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 23:20:40,227 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:20:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:20:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1741457201, now seen corresponding path program 6 times [2021-11-20 23:20:40,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:20:40,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356905256] [2021-11-20 23:20:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:20:40,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:20:40,235 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:20:40,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58833753] [2021-11-20 23:20:40,236 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 23:20:40,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:20:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:20:40,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:20:40,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 23:20:40,306 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 23:20:40,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:20:40,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:20:40,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:20:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 23:20:40,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:20:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 23:20:40,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:20:40,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356905256] [2021-11-20 23:20:40,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:20:40,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58833753] [2021-11-20 23:20:40,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58833753] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:20:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [325698015] [2021-11-20 23:20:40,560 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:20:40,560 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:20:40,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:20:40,561 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:20:40,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:20:40,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:40,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:40,864 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-20 23:20:40,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 105 [2021-11-20 23:20:40,903 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:41,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:41,076 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:20:41,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 54 [2021-11-20 23:20:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:41,234 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:20:41,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:20:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:41,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:41,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88 [2021-11-20 23:20:42,057 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:42,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2021-11-20 23:20:42,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:42,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:42,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:43,009 INFO L354 Elim1Store]: treesize reduction 224, result has 23.5 percent of original size [2021-11-20 23:20:43,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 280 treesize of output 328 [2021-11-20 23:20:44,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:20:44,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:44,500 INFO L354 Elim1Store]: treesize reduction 60, result has 4.8 percent of original size [2021-11-20 23:20:44,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 251 treesize of output 200 [2021-11-20 23:20:45,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:45,590 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 23 treesize of output 19 [2021-11-20 23:20:45,836 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:20:45,849 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 23 treesize of output 19 [2021-11-20 23:20:47,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:20:47,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:47,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:20:48,272 INFO L354 Elim1Store]: treesize reduction 2642, result has 18.5 percent of original size [2021-11-20 23:20:48,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1179 [2021-11-20 23:20:59,697 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:00,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:00,186 INFO L244 Elim1Store]: Index analysis took 175 ms [2021-11-20 23:21:00,603 INFO L354 Elim1Store]: treesize reduction 340, result has 8.1 percent of original size [2021-11-20 23:21:00,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 288 treesize of output 191 [2021-11-20 23:21:01,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:01,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:01,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:01,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 119 [2021-11-20 23:21:03,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:03,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:03,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:03,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:03,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 113 [2021-11-20 23:21:03,896 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:05,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:05,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:05,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:05,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:06,486 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:21:06,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 662 treesize of output 570 [2021-11-20 23:21:13,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:13,248 INFO L354 Elim1Store]: treesize reduction 285, result has 23.0 percent of original size [2021-11-20 23:21:13,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 905 treesize of output 725 [2021-11-20 23:21:29,004 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:21:29,024 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:21:31,392 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:21:31,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:21:31,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-20 23:21:31,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052990127] [2021-11-20 23:21:31,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 23:21:31,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:21:31,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:21:31,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:21:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:21:31,395 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:21:31,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:21:31,721 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2021-11-20 23:21:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 23:21:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2021-11-20 23:21:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:21:31,725 INFO L225 Difference]: With dead ends: 63 [2021-11-20 23:21:31,725 INFO L226 Difference]: Without dead ends: 40 [2021-11-20 23:21:31,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2021-11-20 23:21:31,727 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:21:31,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 28 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:21:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-20 23:21:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2021-11-20 23:21:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:21:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-11-20 23:21:31,735 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 30 [2021-11-20 23:21:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:21:31,736 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-11-20 23:21:31,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:21:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-11-20 23:21:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 23:21:31,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:21:31,738 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:21:31,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-20 23:21:31,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 23:21:31,947 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:21:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:21:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1688779138, now seen corresponding path program 7 times [2021-11-20 23:21:31,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:21:31,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880321603] [2021-11-20 23:21:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:21:31,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:21:31,955 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:21:31,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706708824] [2021-11-20 23:21:31,955 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 23:21:31,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:21:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:21:31,963 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:21:31,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 23:21:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:21:32,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:21:32,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:21:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 23:21:32,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:21:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-20 23:21:32,277 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:21:32,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880321603] [2021-11-20 23:21:32,277 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:21:32,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706708824] [2021-11-20 23:21:32,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706708824] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:21:32,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [546120429] [2021-11-20 23:21:32,279 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:21:32,280 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:21:32,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:21:32,280 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:21:32,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:21:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:32,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:32,568 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:21:32,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:21:32,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:32,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:32,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 89 [2021-11-20 23:21:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:32,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2021-11-20 23:21:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:33,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:33,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2021-11-20 23:21:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:33,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2021-11-20 23:21:34,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,136 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-20 23:21:34,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 316 [2021-11-20 23:21:34,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:34,408 INFO L354 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2021-11-20 23:21:34,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 299 treesize of output 233 [2021-11-20 23:21:35,895 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 23 treesize of output 19 [2021-11-20 23:21:35,921 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:36,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:36,194 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 23 treesize of output 19 [2021-11-20 23:21:37,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:21:37,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:37,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:40,638 INFO L354 Elim1Store]: treesize reduction 2651, result has 18.2 percent of original size [2021-11-20 23:21:40,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1170 [2021-11-20 23:21:41,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:41,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:41,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:41,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:41,641 INFO L354 Elim1Store]: treesize reduction 26, result has 36.6 percent of original size [2021-11-20 23:21:41,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 474 treesize of output 313 [2021-11-20 23:21:42,205 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:42,717 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:42,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:42,978 INFO L244 Elim1Store]: Index analysis took 129 ms [2021-11-20 23:21:43,262 INFO L354 Elim1Store]: treesize reduction 344, result has 7.0 percent of original size [2021-11-20 23:21:43,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 505 treesize of output 332 [2021-11-20 23:21:44,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:44,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:44,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 439 treesize of output 280 [2021-11-20 23:21:45,416 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:21:45,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:45,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:45,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:45,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:46,099 INFO L354 Elim1Store]: treesize reduction 132, result has 7.0 percent of original size [2021-11-20 23:21:46,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 470 treesize of output 299 [2021-11-20 23:21:47,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:47,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:47,859 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:47,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 435 treesize of output 276 [2021-11-20 23:21:48,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:48,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:48,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:48,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:48,722 INFO L354 Elim1Store]: treesize reduction 132, result has 7.0 percent of original size [2021-11-20 23:21:48,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 466 treesize of output 295 [2021-11-20 23:21:50,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,176 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-20 23:21:50,234 INFO L354 Elim1Store]: treesize reduction 356, result has 3.8 percent of original size [2021-11-20 23:21:50,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 501 treesize of output 316 [2021-11-20 23:21:50,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:50,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:50,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:21:50,958 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-20 23:21:50,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 470 treesize of output 294 [2021-11-20 23:21:51,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:51,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:51,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:51,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:51,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:51,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:52,057 INFO L354 Elim1Store]: treesize reduction 272, result has 26.5 percent of original size [2021-11-20 23:21:52,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 578 treesize of output 481 [2021-11-20 23:21:56,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:56,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:56,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:56,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:56,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:56,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:21:57,133 INFO L354 Elim1Store]: treesize reduction 286, result has 22.7 percent of original size [2021-11-20 23:21:57,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 734 treesize of output 506 [2021-11-20 23:22:04,623 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:22:04,641 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:22:06,796 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:22:06,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:22:06,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-20 23:22:06,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292687193] [2021-11-20 23:22:06,797 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 23:22:06,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:22:06,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:22:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:22:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:22:06,798 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:22:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:22:07,058 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2021-11-20 23:22:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:22:07,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2021-11-20 23:22:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:22:07,073 INFO L225 Difference]: With dead ends: 44 [2021-11-20 23:22:07,073 INFO L226 Difference]: Without dead ends: 36 [2021-11-20 23:22:07,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:22:07,075 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:22:07,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 46 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:22:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-20 23:22:07,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-20 23:22:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:22:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-11-20 23:22:07,083 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 34 [2021-11-20 23:22:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:22:07,084 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-11-20 23:22:07,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 23:22:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-11-20 23:22:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 23:22:07,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:22:07,085 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:22:07,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 23:22:07,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:22:07,305 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:22:07,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:22:07,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1339552773, now seen corresponding path program 8 times [2021-11-20 23:22:07,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:22:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653423585] [2021-11-20 23:22:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:22:07,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:22:07,311 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:22:07,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845193655] [2021-11-20 23:22:07,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 23:22:07,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:22:07,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:22:07,313 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:22:07,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 23:22:11,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-20 23:22:11,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:22:11,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-20 23:22:11,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:22:11,841 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 21 treesize of output 17 [2021-11-20 23:22:11,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-20 23:22:11,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:11,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 91 [2021-11-20 23:22:11,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:11,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 21 [2021-11-20 23:22:12,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,084 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:22:12,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 98 [2021-11-20 23:22:12,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 26 [2021-11-20 23:22:12,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,223 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:22:12,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 125 [2021-11-20 23:22:12,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:12,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 38 [2021-11-20 23:22:13,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 613 treesize of output 593 [2021-11-20 23:22:13,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:13,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:13,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:13,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:13,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,010 WARN L227 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 449 DAG size of output: 139 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:22:19,011 INFO L354 Elim1Store]: treesize reduction 7679, result has 9.1 percent of original size [2021-11-20 23:22:19,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 79 case distinctions, treesize of input 837 treesize of output 1405 [2021-11-20 23:22:19,513 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:22:19,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:19,686 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-11-20 23:22:19,796 INFO L354 Elim1Store]: treesize reduction 162, result has 8.0 percent of original size [2021-11-20 23:22:19,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 326 treesize of output 210 [2021-11-20 23:22:20,101 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:22:20,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,198 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-20 23:22:20,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 143 [2021-11-20 23:22:20,460 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:22:20,517 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:22:20,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:22:20,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 134 [2021-11-20 23:22:20,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:21,038 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-20 23:22:21,162 INFO L354 Elim1Store]: treesize reduction 151, result has 30.1 percent of original size [2021-11-20 23:22:21,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 20 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 426 treesize of output 323 [2021-11-20 23:22:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:29,698 INFO L354 Elim1Store]: treesize reduction 26, result has 74.8 percent of original size [2021-11-20 23:22:29,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 663 treesize of output 458 [2021-11-20 23:22:46,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:22:46,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:22:46,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:22:47,022 INFO L354 Elim1Store]: treesize reduction 234, result has 45.2 percent of original size [2021-11-20 23:22:47,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 293 treesize of output 303 [2021-11-20 23:22:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 23:22:50,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:23:15,118 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:23:15,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653423585] [2021-11-20 23:23:15,118 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:23:15,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845193655] [2021-11-20 23:23:15,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845193655] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:23:15,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1630068626] [2021-11-20 23:23:15,120 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:23:15,120 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:23:15,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:23:15,121 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:23:15,121 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:23:15,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,458 INFO L354 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2021-11-20 23:23:15,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 105 [2021-11-20 23:23:15,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2021-11-20 23:23:15,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,650 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:23:15,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2021-11-20 23:23:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:15,930 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:23:15,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:23:16,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:16,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:23:16,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 92 [2021-11-20 23:23:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:16,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 21 [2021-11-20 23:23:17,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:17,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:23:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:17,840 INFO L354 Elim1Store]: treesize reduction 120, result has 11.1 percent of original size [2021-11-20 23:23:17,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 282 treesize of output 312 [2021-11-20 23:23:18,496 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:18,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:18,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:18,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:19,003 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-20 23:23:19,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 251 treesize of output 203 [2021-11-20 23:23:20,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:20,061 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 23 treesize of output 19 [2021-11-20 23:23:20,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:20,402 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 23 treesize of output 19 [2021-11-20 23:23:22,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:23:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:22,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:23:23,178 INFO L354 Elim1Store]: treesize reduction 2646, result has 18.4 percent of original size [2021-11-20 23:23:23,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1175 [2021-11-20 23:23:33,982 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:35,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:36,718 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:41,484 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:41,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:44,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:52,515 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:54,455 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:23:58,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:24:01,133 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:24:16,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:16,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:17,459 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:24:17,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 2633 treesize of output 2351 [2021-11-20 23:24:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,773 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:24:41,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 2955 treesize of output 1862 [2021-11-20 23:24:41,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:24:42,548 INFO L354 Elim1Store]: treesize reduction 291, result has 21.4 percent of original size [2021-11-20 23:24:42,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 2459 treesize of output 1407 [2021-11-20 23:24:55,316 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 20 for LOIs [2021-11-20 23:24:55,338 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:25:01,522 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-20 23:25:01,522 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 23:25:01,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2021-11-20 23:25:01,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433571143] [2021-11-20 23:25:01,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 23:25:01,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-20 23:25:01,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:01,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-20 23:25:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=2678, Unknown=1, NotChecked=0, Total=3080 [2021-11-20 23:25:01,525 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 28 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:25:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:02,195 INFO L93 Difference]: Finished difference Result 77 states and 91 transitions. [2021-11-20 23:25:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 23:25:02,197 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2021-11-20 23:25:02,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:02,198 INFO L225 Difference]: With dead ends: 77 [2021-11-20 23:25:02,199 INFO L226 Difference]: Without dead ends: 74 [2021-11-20 23:25:02,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=405, Invalid=2786, Unknown=1, NotChecked=0, Total=3192 [2021-11-20 23:25:02,201 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 184 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:02,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 97 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 193 Invalid, 0 Unknown, 184 Unchecked, 0.6s Time] [2021-11-20 23:25:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-20 23:25:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58. [2021-11-20 23:25:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 47 states have internal predecessors, (59), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 23:25:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2021-11-20 23:25:02,215 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 35 [2021-11-20 23:25:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:02,216 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2021-11-20 23:25:02,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 23:25:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2021-11-20 23:25:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-20 23:25:02,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:02,217 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:02,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-20 23:25:02,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:25:02,423 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:25:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash 220356089, now seen corresponding path program 9 times [2021-11-20 23:25:02,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:02,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347151505] [2021-11-20 23:25:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:02,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:02,430 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:25:02,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174964271] [2021-11-20 23:25:02,431 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 23:25:02,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:25:02,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:25:02,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:25:02,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6f001-eec9-4fb9-b628-61a189159447/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 23:25:02,493 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 23:25:02,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 23:25:02,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:25:02,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:25:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 23:25:02,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:25:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-20 23:25:02,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:02,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347151505] [2021-11-20 23:25:02,915 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:25:02,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174964271] [2021-11-20 23:25:02,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174964271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:25:02,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324264515] [2021-11-20 23:25:02,918 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-20 23:25:02,918 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:25:02,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:25:02,919 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:25:02,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:25:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,191 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:25:03,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-20 23:25:03,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 89 [2021-11-20 23:25:03,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2021-11-20 23:25:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:03,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:03,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 88 [2021-11-20 23:25:04,077 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:04,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:04,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 17 [2021-11-20 23:25:05,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:05,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:05,411 INFO L354 Elim1Store]: treesize reduction 224, result has 23.5 percent of original size [2021-11-20 23:25:05,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 280 treesize of output 328 [2021-11-20 23:25:06,321 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:06,694 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:07,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:07,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:07,545 INFO L354 Elim1Store]: treesize reduction 60, result has 4.8 percent of original size [2021-11-20 23:25:07,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 311 treesize of output 260 [2021-11-20 23:25:08,534 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 23 treesize of output 19 [2021-11-20 23:25:08,554 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:08,772 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:08,813 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 23 treesize of output 19 [2021-11-20 23:25:10,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 560 treesize of output 548 [2021-11-20 23:25:10,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:15,528 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 169 DAG size of output: 104 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:25:15,529 INFO L354 Elim1Store]: treesize reduction 2638, result has 18.6 percent of original size [2021-11-20 23:25:15,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 26 case distinctions, treesize of input 638 treesize of output 1183 [2021-11-20 23:25:16,865 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:17,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:17,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:17,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 55 [2021-11-20 23:25:17,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:17,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 55 [2021-11-20 23:25:19,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:19,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:19,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:19,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 83 [2021-11-20 23:25:19,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:19,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:19,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:19,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:19,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 83 [2021-11-20 23:25:20,533 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:20,691 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:20,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 52 [2021-11-20 23:25:21,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:21,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 52 [2021-11-20 23:25:21,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:21,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 72 [2021-11-20 23:25:22,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:22,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 72 [2021-11-20 23:25:22,397 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:22,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:23,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:23,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:23,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:23,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 103 [2021-11-20 23:25:23,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:23,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:23,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:23,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 103 [2021-11-20 23:25:24,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:24,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 75 [2021-11-20 23:25:24,276 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:24,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:24,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 75 [2021-11-20 23:25:24,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:25,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:25,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 93 [2021-11-20 23:25:25,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:25,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:25,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 93 [2021-11-20 23:25:25,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:25,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:25,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:25,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 121 [2021-11-20 23:25:26,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:26,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:26,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:26,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:26,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 121 [2021-11-20 23:25:26,654 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:26,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:26,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 90 [2021-11-20 23:25:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:27,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 90 [2021-11-20 23:25:27,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:27,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:27,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 96 [2021-11-20 23:25:28,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:28,311 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:28,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:28,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 96 [2021-11-20 23:25:29,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:29,095 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 124 [2021-11-20 23:25:29,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,822 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:29,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:29,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:29,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 124 [2021-11-20 23:25:30,111 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:30,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:30,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:30,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 93 [2021-11-20 23:25:30,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:30,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:30,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 93 [2021-11-20 23:25:31,711 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:32,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:32,236 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:32,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:32,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 83 [2021-11-20 23:25:33,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:33,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:33,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 83 [2021-11-20 23:25:35,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:35,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:35,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 55 [2021-11-20 23:25:36,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:36,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:36,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 55 [2021-11-20 23:25:36,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:37,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:37,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:37,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:37,541 INFO L244 Elim1Store]: Index analysis took 194 ms [2021-11-20 23:25:37,814 INFO L354 Elim1Store]: treesize reduction 100, result has 17.4 percent of original size [2021-11-20 23:25:37,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 205 treesize of output 107 [2021-11-20 23:25:38,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:38,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:38,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:38,780 INFO L354 Elim1Store]: treesize reduction 100, result has 17.4 percent of original size [2021-11-20 23:25:38,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 205 treesize of output 107 [2021-11-20 23:25:39,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:39,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:39,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:39,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 58 [2021-11-20 23:25:40,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:40,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:40,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:40,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 58 [2021-11-20 23:25:43,169 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:43,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:43,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:43,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:43,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 96 [2021-11-20 23:25:44,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:44,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:44,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 96 [2021-11-20 23:25:44,857 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:44,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:44,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:44,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:44,973 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-20 23:25:45,033 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:25:45,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 273 treesize of output 1 [2021-11-20 23:25:45,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:45,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:45,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:45,948 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-11-20 23:25:46,011 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:25:46,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 273 treesize of output 124 [2021-11-20 23:25:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:47,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:47,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:47,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:47,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 121 [2021-11-20 23:25:48,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:48,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:48,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:48,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 121 [2021-11-20 23:25:48,917 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:25:49,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:49,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 93 [2021-11-20 23:25:49,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:50,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:50,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 93 [2021-11-20 23:25:50,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:50,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:50,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:50,906 INFO L354 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2021-11-20 23:25:50,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 99 [2021-11-20 23:25:51,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:51,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:51,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:51,782 INFO L354 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2021-11-20 23:25:51,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 99 [2021-11-20 23:25:53,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:53,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:54,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:54,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:54,123 INFO L244 Elim1Store]: Index analysis took 244 ms [2021-11-20 23:25:54,397 INFO L354 Elim1Store]: treesize reduction 353, result has 4.6 percent of original size [2021-11-20 23:25:54,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 298 treesize of output 143 [2021-11-20 23:25:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:25:55,939 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-11-20 23:25:56,016 INFO L354 Elim1Store]: treesize reduction 360, result has 2.7 percent of original size [2021-11-20 23:25:56,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 298 treesize of output 137 [2021-11-20 23:26:00,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:00,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:00,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:00,998 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:26:00,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 96 [2021-11-20 23:26:02,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:02,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:02,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:02,226 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-20 23:26:02,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 96 [2021-11-20 23:26:03,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:03,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:03,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:03,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:03,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 124 [2021-11-20 23:26:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:04,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:04,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:04,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:04,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:04,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:04,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 124 [2021-11-20 23:26:05,512 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:26:07,872 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:26:08,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:08,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:08,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:08,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 103 [2021-11-20 23:26:09,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:09,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:09,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:09,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 103 [2021-11-20 23:26:10,071 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:26:10,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:10,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:10,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 75 [2021-11-20 23:26:11,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:11,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 75 [2021-11-20 23:26:12,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:13,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,178 INFO L244 Elim1Store]: Index analysis took 202 ms [2021-11-20 23:26:13,208 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:26:13,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 240 treesize of output 106 [2021-11-20 23:26:13,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:13,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:13,940 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-11-20 23:26:14,010 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-20 23:26:14,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 240 treesize of output 1 [2021-11-20 23:26:15,118 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:15,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:15,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:15,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 78 [2021-11-20 23:26:15,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:15,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:15,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:15,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 78 [2021-11-20 23:26:19,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 100 [2021-11-20 23:26:19,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:19,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 100 [2021-11-20 23:26:21,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:21,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 103 [2021-11-20 23:26:21,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:21,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:21,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 103 [2021-11-20 23:26:22,678 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:26:23,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:23,546 INFO L354 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2021-11-20 23:26:23,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 271 treesize of output 124 [2021-11-20 23:26:24,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:24,677 INFO L354 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2021-11-20 23:26:24,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 271 treesize of output 124 [2021-11-20 23:26:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:26,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:26,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:26,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 121 [2021-11-20 23:26:27,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:27,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:27,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 121 [2021-11-20 23:26:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:28,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 118 [2021-11-20 23:26:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:29,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:29,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:29,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 118 [2021-11-20 23:26:30,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:30,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:30,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:30,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:30,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 121 [2021-11-20 23:26:31,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:31,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 121 [2021-11-20 23:26:31,533 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:26:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:33,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:33,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 83 [2021-11-20 23:26:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:34,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:26:34,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:34,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 83 [2021-11-20 23:26:35,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 80 [2021-11-20 23:26:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:26:35,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 80