./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/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_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0a808cbaf75e35690b91e29e30a5a3e0888859a17f932e1ee324e5b23ddf983 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:15:09,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:15:09,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:15:09,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:15:09,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:15:09,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:15:09,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:15:09,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:15:09,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:15:09,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:15:09,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:15:09,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:15:09,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:15:09,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:15:09,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:15:09,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:15:09,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:15:09,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:15:09,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:15:09,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:15:09,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:15:09,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:15:09,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:15:09,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:15:09,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:15:09,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:15:09,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:15:09,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:15:09,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:15:09,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:15:09,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:15:09,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:15:09,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:15:09,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:15:09,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:15:09,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:15:09,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:15:09,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:15:09,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:15:09,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:15:09,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:15:09,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 01:15:09,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:15:09,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:15:09,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:15:09,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:15:09,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:15:09,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:15:09,856 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:15:09,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:15:09,857 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:15:09,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:15:09,857 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:15:09,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:15:09,858 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:15:09,858 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:15:09,858 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:15:09,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:15:09,859 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:15:09,859 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:15:09,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 01:15:09,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 01:15:09,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:15:09,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:15:09,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:15:09,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:15:09,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:15:09,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:15:09,862 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 01:15:09,862 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 01:15:09,862 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 01:15:09,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:15:09,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 01:15:09,863 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:15:09,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:15:09,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:15:09,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:15:09,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:15:09,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:15:09,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:15:09,865 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:15:09,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:15:09,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:15:09,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:15:09,866 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_75f33d0f-a0f9-45d7-98a9-f34089b79730/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0a808cbaf75e35690b91e29e30a5a3e0888859a17f932e1ee324e5b23ddf983 [2021-11-21 01:15:10,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:15:10,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:15:10,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:15:10,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:15:10,223 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:15:10,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i [2021-11-21 01:15:10,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/data/1aa244b63/bf71e24b73614570835c9ffe49013566/FLAGc8fc0b7ad [2021-11-21 01:15:10,957 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:15:10,961 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i [2021-11-21 01:15:10,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/data/1aa244b63/bf71e24b73614570835c9ffe49013566/FLAGc8fc0b7ad [2021-11-21 01:15:11,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/data/1aa244b63/bf71e24b73614570835c9ffe49013566 [2021-11-21 01:15:11,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:15:11,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:15:11,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:15:11,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:15:11,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:15:11,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d063a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11, skipping insertion in model container [2021-11-21 01:15:11,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:15:11,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:15:11,632 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_75f33d0f-a0f9-45d7-98a9-f34089b79730/sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i[24450,24463] [2021-11-21 01:15:11,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:15:11,643 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:15:11,693 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_75f33d0f-a0f9-45d7-98a9-f34089b79730/sv-benchmarks/c/list-simple/dll2n_prepend_unequal.i[24450,24463] [2021-11-21 01:15:11,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:15:11,730 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:15:11,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11 WrapperNode [2021-11-21 01:15:11,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:15:11,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:15:11,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:15:11,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:15:11,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,785 INFO L137 Inliner]: procedures = 127, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 126 [2021-11-21 01:15:11,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:15:11,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:15:11,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:15:11,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:15:11,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:15:11,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:15:11,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:15:11,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:15:11,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (1/1) ... [2021-11-21 01:15:11,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:15:11,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:15:11,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:15:11,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:15:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-21 01:15:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-21 01:15:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:15:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:15:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:15:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:15:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:15:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:15:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:15:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:15:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:15:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:15:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:15:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:15:12,021 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:15:12,023 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:15:12,065 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-21 01:15:12,442 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:15:12,523 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:15:12,523 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 01:15:12,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:15:12 BoogieIcfgContainer [2021-11-21 01:15:12,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:15:12,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:15:12,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:15:12,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:15:12,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:15:11" (1/3) ... [2021-11-21 01:15:12,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b210b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:15:12, skipping insertion in model container [2021-11-21 01:15:12,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:15:11" (2/3) ... [2021-11-21 01:15:12,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b210b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:15:12, skipping insertion in model container [2021-11-21 01:15:12,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:15:12" (3/3) ... [2021-11-21 01:15:12,544 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_unequal.i [2021-11-21 01:15:12,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:15:12,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2021-11-21 01:15:12,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:15:12,612 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:15:12,613 INFO L340 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2021-11-21 01:15:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 39 states have (on average 2.41025641025641) internal successors, (94), 85 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:15:12,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:12,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:15:12,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash 6361566, now seen corresponding path program 1 times [2021-11-21 01:15:12,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:12,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619893674] [2021-11-21 01:15:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:12,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:12,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:12,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619893674] [2021-11-21 01:15:12,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619893674] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:12,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:12,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:15:12,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114490597] [2021-11-21 01:15:12,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:12,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:12,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:12,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:12,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:12,989 INFO L87 Difference]: Start difference. First operand has 87 states, 39 states have (on average 2.41025641025641) internal successors, (94), 85 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:13,218 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2021-11-21 01:15:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:13,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:15:13,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:13,230 INFO L225 Difference]: With dead ends: 149 [2021-11-21 01:15:13,230 INFO L226 Difference]: Without dead ends: 143 [2021-11-21 01:15:13,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,236 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 80 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:13,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 137 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:15:13,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-21 01:15:13,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 79. [2021-11-21 01:15:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 78 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2021-11-21 01:15:13,283 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 4 [2021-11-21 01:15:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:13,284 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2021-11-21 01:15:13,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-11-21 01:15:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:15:13,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:13,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:15:13,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:15:13,286 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:13,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash 6361567, now seen corresponding path program 1 times [2021-11-21 01:15:13,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:13,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656294698] [2021-11-21 01:15:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:13,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:13,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:13,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656294698] [2021-11-21 01:15:13,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656294698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:13,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:13,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:15:13,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346125671] [2021-11-21 01:15:13,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:13,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:13,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,347 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:13,492 INFO L93 Difference]: Finished difference Result 142 states and 153 transitions. [2021-11-21 01:15:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:13,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:15:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:13,495 INFO L225 Difference]: With dead ends: 142 [2021-11-21 01:15:13,496 INFO L226 Difference]: Without dead ends: 142 [2021-11-21 01:15:13,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,498 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 78 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:13,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 132 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:15:13,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-21 01:15:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 76. [2021-11-21 01:15:13,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 37 states have (on average 2.2162162162162162) internal successors, (82), 75 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2021-11-21 01:15:13,510 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 4 [2021-11-21 01:15:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:13,511 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2021-11-21 01:15:13,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2021-11-21 01:15:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:15:13,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:13,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:15:13,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:15:13,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:13,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:13,514 INFO L85 PathProgramCache]: Analyzing trace with hash 6532687, now seen corresponding path program 1 times [2021-11-21 01:15:13,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:13,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97739611] [2021-11-21 01:15:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:13,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:13,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:13,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97739611] [2021-11-21 01:15:13,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97739611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:13,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:13,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:15:13,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715594568] [2021-11-21 01:15:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:13,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:13,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:13,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,552 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:13,593 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2021-11-21 01:15:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:13,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:15:13,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:13,595 INFO L225 Difference]: With dead ends: 86 [2021-11-21 01:15:13,595 INFO L226 Difference]: Without dead ends: 86 [2021-11-21 01:15:13,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,597 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 10 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:13,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 134 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:15:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-21 01:15:13,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 77. [2021-11-21 01:15:13,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 38 states have (on average 2.1842105263157894) internal successors, (83), 76 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2021-11-21 01:15:13,608 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 4 [2021-11-21 01:15:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:13,608 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2021-11-21 01:15:13,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2021-11-21 01:15:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:15:13,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:13,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:13,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:15:13,610 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash -475556254, now seen corresponding path program 1 times [2021-11-21 01:15:13,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207235616] [2021-11-21 01:15:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:13,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:13,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:13,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207235616] [2021-11-21 01:15:13,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207235616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:13,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:13,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:15:13,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734414845] [2021-11-21 01:15:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:13,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:13,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:13,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:13,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,675 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:13,722 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2021-11-21 01:15:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:13,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:15:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:13,724 INFO L225 Difference]: With dead ends: 83 [2021-11-21 01:15:13,724 INFO L226 Difference]: Without dead ends: 83 [2021-11-21 01:15:13,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:13,726 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:13,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 129 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:15:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-21 01:15:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-11-21 01:15:13,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 43 states have (on average 2.046511627906977) internal successors, (88), 81 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2021-11-21 01:15:13,734 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 8 [2021-11-21 01:15:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:13,738 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2021-11-21 01:15:13,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2021-11-21 01:15:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:15:13,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:13,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:13,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:15:13,742 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:13,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1805700354, now seen corresponding path program 1 times [2021-11-21 01:15:13,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:13,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740315719] [2021-11-21 01:15:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:13,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:13,864 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:13,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740315719] [2021-11-21 01:15:13,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740315719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:15:13,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194667958] [2021-11-21 01:15:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:13,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:15:13,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:15:13,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:15:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:13,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:15:13,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:15:14,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:15:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:15:14,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:15:14,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194667958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:14,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:15:14,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2021-11-21 01:15:14,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291720695] [2021-11-21 01:15:14,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:14,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:14,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:14,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:14,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:15:14,071 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:14,151 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2021-11-21 01:15:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:15:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:14,153 INFO L225 Difference]: With dead ends: 89 [2021-11-21 01:15:14,153 INFO L226 Difference]: Without dead ends: 89 [2021-11-21 01:15:14,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:15:14,155 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 62 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:14,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 51 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:15:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-21 01:15:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2021-11-21 01:15:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 43 states have (on average 1.9767441860465116) internal successors, (85), 78 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2021-11-21 01:15:14,162 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 11 [2021-11-21 01:15:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:14,162 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2021-11-21 01:15:14,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2021-11-21 01:15:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:15:14,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:14,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:14,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:15:14,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:14,390 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1805700355, now seen corresponding path program 1 times [2021-11-21 01:15:14,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:14,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497875295] [2021-11-21 01:15:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:14,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:14,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:14,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497875295] [2021-11-21 01:15:14,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497875295] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:15:14,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207480946] [2021-11-21 01:15:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:14,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:14,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:15:14,491 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:15:14,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:15:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:14,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:15:14,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:15:14,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:14,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:15:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:14,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207480946] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:15:14,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [548806992] [2021-11-21 01:15:14,754 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2021-11-21 01:15:14,754 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:15:14,759 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:15:14,765 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:15:14,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:15:14,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:14,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:14,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:15:15,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:15:15,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:15,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:15,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:15:15,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:15,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:15,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:15,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:15,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:15,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:16,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:16,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:15:17,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:17,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:17,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:17,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:17,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:17,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:17,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,791 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:15:17,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 388 [2021-11-21 01:15:17,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,854 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-21 01:15:17,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 388 treesize of output 387 [2021-11-21 01:15:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:17,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:17,902 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-21 01:15:17,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 383 [2021-11-21 01:15:19,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-21 01:15:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:19,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:19,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:20,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:20,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:20,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:20,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,516 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-21 01:15:20,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 406 [2021-11-21 01:15:20,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,576 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-21 01:15:20,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 403 treesize of output 402 [2021-11-21 01:15:20,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:20,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:20,608 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:15:20,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 399 treesize of output 380 [2021-11-21 01:15:21,799 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-21 01:15:21,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 452 treesize of output 459 [2021-11-21 01:15:24,662 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-21 01:15:24,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 378 [2021-11-21 01:15:24,717 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-21 01:15:24,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 377 treesize of output 368 [2021-11-21 01:15:24,759 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-21 01:15:24,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 362 treesize of output 353 [2021-11-21 01:15:25,160 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:15:27,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [548806992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:27,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:15:27,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2021-11-21 01:15:27,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158756496] [2021-11-21 01:15:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:27,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:15:27,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:15:27,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:15:27,251 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:27,992 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2021-11-21 01:15:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:15:27,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:15:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:27,994 INFO L225 Difference]: With dead ends: 90 [2021-11-21 01:15:27,994 INFO L226 Difference]: Without dead ends: 90 [2021-11-21 01:15:27,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:15:27,995 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 7 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:27,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 121 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:15:27,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-21 01:15:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2021-11-21 01:15:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 50 states have (on average 1.86) internal successors, (93), 85 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2021-11-21 01:15:28,004 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 11 [2021-11-21 01:15:28,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:28,004 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2021-11-21 01:15:28,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2021-11-21 01:15:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 01:15:28,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:28,006 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-21 01:15:28,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:15:28,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:28,213 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:28,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash 419439509, now seen corresponding path program 1 times [2021-11-21 01:15:28,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:28,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348643396] [2021-11-21 01:15:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:28,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:28,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348643396] [2021-11-21 01:15:28,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348643396] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:15:28,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317004304] [2021-11-21 01:15:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:28,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:28,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:15:28,292 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:15:28,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:15:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:28,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:15:28,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:15:28,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:15:28,409 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:15:28,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-21 01:15:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:28,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:15:28,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:28,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317004304] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:15:28,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1959804151] [2021-11-21 01:15:28,664 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-21 01:15:28,664 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:15:28,664 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:15:28,665 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:15:28,665 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:15:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:15:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:28,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:15:29,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:29,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:15:29,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:29,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:29,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:29,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:29,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:29,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:29,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:29,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:15:30,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:15:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:15:30,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:30,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:15:30,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:15:30,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:30,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:30,810 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:15:30,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 399 treesize of output 398 [2021-11-21 01:15:30,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:30,838 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:15:30,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2021-11-21 01:15:30,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,859 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:30,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:30,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:30,871 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:15:30,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 376 treesize of output 375 [2021-11-21 01:15:31,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:31,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2021-11-21 01:15:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:32,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:32,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:32,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:32,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:32,768 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:15:32,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 399 treesize of output 398 [2021-11-21 01:15:32,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:32,789 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:15:32,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2021-11-21 01:15:32,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:32,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:32,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:32,814 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:15:32,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 376 treesize of output 375 [2021-11-21 01:15:34,180 INFO L354 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2021-11-21 01:15:34,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 452 treesize of output 459 [2021-11-21 01:15:36,715 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-21 01:15:36,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 378 [2021-11-21 01:15:36,768 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-21 01:15:36,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 377 treesize of output 368 [2021-11-21 01:15:36,800 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-21 01:15:36,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 362 treesize of output 353 [2021-11-21 01:15:37,205 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:15:39,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1959804151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:39,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:15:39,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 14 [2021-11-21 01:15:39,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067326238] [2021-11-21 01:15:39,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:39,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:15:39,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:39,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:15:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:15:39,426 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:40,366 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2021-11-21 01:15:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:15:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-21 01:15:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:40,368 INFO L225 Difference]: With dead ends: 88 [2021-11-21 01:15:40,368 INFO L226 Difference]: Without dead ends: 88 [2021-11-21 01:15:40,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:15:40,369 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 3 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:40,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 133 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:15:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-21 01:15:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2021-11-21 01:15:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 51 states have (on average 1.8431372549019607) internal successors, (94), 86 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-11-21 01:15:40,375 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 15 [2021-11-21 01:15:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:40,375 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-11-21 01:15:40,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,376 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-11-21 01:15:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:15:40,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:40,377 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:40,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:15:40,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 01:15:40,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:40,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1905120145, now seen corresponding path program 1 times [2021-11-21 01:15:40,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:40,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639386905] [2021-11-21 01:15:40,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:40,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:15:40,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:40,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639386905] [2021-11-21 01:15:40,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639386905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:15:40,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:15:40,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:15:40,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783128736] [2021-11-21 01:15:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:15:40,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:15:40,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:15:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:15:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:40,624 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:15:40,683 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2021-11-21 01:15:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:15:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-21 01:15:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:15:40,685 INFO L225 Difference]: With dead ends: 84 [2021-11-21 01:15:40,685 INFO L226 Difference]: Without dead ends: 84 [2021-11-21 01:15:40,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:15:40,686 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:15:40,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 47 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:15:40,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-21 01:15:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-21 01:15:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.7843137254901962) internal successors, (91), 83 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-11-21 01:15:40,705 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 19 [2021-11-21 01:15:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:15:40,706 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-11-21 01:15:40,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:15:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-11-21 01:15:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 01:15:40,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:15:40,708 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:15:40,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:15:40,708 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:15:40,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:15:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1736387368, now seen corresponding path program 1 times [2021-11-21 01:15:40,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:15:40,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805829329] [2021-11-21 01:15:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:40,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:15:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:15:40,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:15:40,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805829329] [2021-11-21 01:15:40,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805829329] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:15:40,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210574913] [2021-11-21 01:15:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:15:40,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:15:40,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:15:40,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:15:40,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:15:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:15:40,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-21 01:15:40,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:15:40,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:15:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:40,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-21 01:15:41,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:41,074 INFO L354 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2021-11-21 01:15:41,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:15:41,200 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-21 01:15:41,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 27 [2021-11-21 01:15:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:41,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:15:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:15:55,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210574913] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:15:55,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1726527173] [2021-11-21 01:15:55,600 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-21 01:15:55,600 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:15:55,601 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:15:55,601 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:15:55,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:15:55,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:15:55,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:15:55,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:55,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:15:56,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:56,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:15:56,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:56,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:15:56,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:56,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:15:56,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:15:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:56,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:15:57,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:15:57,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:15:57,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:57,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:57,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:15:57,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:15:57,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:15:57,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:15:57,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:57,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:57,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:57,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-21 01:15:58,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:58,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:15:58,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-21 01:15:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:15:59,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 28 [2021-11-21 01:15:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:15:59,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:15:59,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-21 01:15:59,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:15:59,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:15:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:15:59,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:15:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:16:00,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:16:00,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:16:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:16:00,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:00,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2021-11-21 01:16:01,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:16:01,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:16:01,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:16:01,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:01,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:16:01,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:01,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:16:01,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:01,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:01,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:01,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:16:01,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:16:02,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:16:02,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:16:02,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:16:02,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:02,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:02,287 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:16:02,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:16:02,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:02,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:02,370 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:16:02,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:16:02,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:16:02,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:16:02,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:16:02,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:02,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:16:03,011 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 13 treesize of output 9 [2021-11-21 01:16:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:03,042 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:16:03,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 238 treesize of output 224 [2021-11-21 01:16:03,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:16:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:16:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:16:03,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:03,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:16:03,602 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:16:05,693 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:16:05,693 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:16:05,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 14 [2021-11-21 01:16:05,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110458114] [2021-11-21 01:16:05,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:16:05,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 01:16:05,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:05,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 01:16:05,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=613, Unknown=5, NotChecked=0, Total=756 [2021-11-21 01:16:05,695 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:05,850 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2021-11-21 01:16:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:16:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-21 01:16:05,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:05,851 INFO L225 Difference]: With dead ends: 91 [2021-11-21 01:16:05,851 INFO L226 Difference]: Without dead ends: 91 [2021-11-21 01:16:05,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=165, Invalid=700, Unknown=5, NotChecked=0, Total=870 [2021-11-21 01:16:05,853 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 72 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:05,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 188 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 71 Unchecked, 0.1s Time] [2021-11-21 01:16:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-21 01:16:05,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2021-11-21 01:16:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.7058823529411764) internal successors, (87), 79 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-11-21 01:16:05,860 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 22 [2021-11-21 01:16:05,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:05,861 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-11-21 01:16:05,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-11-21 01:16:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 01:16:05,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:05,862 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:05,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:06,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:06,089 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:06,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:06,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1736387367, now seen corresponding path program 1 times [2021-11-21 01:16:06,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:06,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518825426] [2021-11-21 01:16:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:06,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 01:16:06,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:06,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518825426] [2021-11-21 01:16:06,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518825426] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:06,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700894140] [2021-11-21 01:16:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:06,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:06,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:06,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:16:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:06,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-21 01:16:06,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:06,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:16:06,329 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:16:06,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 17 [2021-11-21 01:16:06,492 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-21 01:16:06,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2021-11-21 01:16:06,691 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-21 01:16:06,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 32 [2021-11-21 01:16:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 01:16:06,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:16:06,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700894140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:06,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:16:06,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-21 01:16:06,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598921891] [2021-11-21 01:16:06,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:06,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:06,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:06,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:06,783 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:06,831 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2021-11-21 01:16:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:16:06,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-21 01:16:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:06,832 INFO L225 Difference]: With dead ends: 79 [2021-11-21 01:16:06,832 INFO L226 Difference]: Without dead ends: 79 [2021-11-21 01:16:06,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:06,833 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:06,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 105 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2021-11-21 01:16:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-21 01:16:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-21 01:16:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.6862745098039216) internal successors, (86), 78 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2021-11-21 01:16:06,837 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 22 [2021-11-21 01:16:06,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:06,837 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2021-11-21 01:16:06,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2021-11-21 01:16:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:16:06,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:06,839 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2021-11-21 01:16:06,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:07,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:07,045 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1409553150, now seen corresponding path program 1 times [2021-11-21 01:16:07,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131467514] [2021-11-21 01:16:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:07,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:07,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131467514] [2021-11-21 01:16:07,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131467514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:07,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395526246] [2021-11-21 01:16:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:07,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:07,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:07,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:16:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:16:07,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:07,206 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:07,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:16:07,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395526246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:07,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:16:07,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-21 01:16:07,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769535275] [2021-11-21 01:16:07,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:07,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:07,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:07,209 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:07,236 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2021-11-21 01:16:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:16:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-21 01:16:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:07,238 INFO L225 Difference]: With dead ends: 74 [2021-11-21 01:16:07,238 INFO L226 Difference]: Without dead ends: 72 [2021-11-21 01:16:07,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:07,239 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 63 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:07,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 77 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:16:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-21 01:16:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-21 01:16:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 71 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2021-11-21 01:16:07,244 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 23 [2021-11-21 01:16:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:07,246 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2021-11-21 01:16:07,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2021-11-21 01:16:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:16:07,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:07,250 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:07,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:07,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:07,465 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2006566481, now seen corresponding path program 1 times [2021-11-21 01:16:07,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934095775] [2021-11-21 01:16:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:07,505 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:07,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934095775] [2021-11-21 01:16:07,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934095775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:07,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:07,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:16:07,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198872274] [2021-11-21 01:16:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:07,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:16:07,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:07,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:16:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:16:07,508 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:07,576 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2021-11-21 01:16:07,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:07,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-21 01:16:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:07,577 INFO L225 Difference]: With dead ends: 81 [2021-11-21 01:16:07,577 INFO L226 Difference]: Without dead ends: 81 [2021-11-21 01:16:07,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:07,578 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 103 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:07,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 56 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:07,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-21 01:16:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2021-11-21 01:16:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 70 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2021-11-21 01:16:07,582 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 23 [2021-11-21 01:16:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:07,582 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2021-11-21 01:16:07,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2021-11-21 01:16:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:16:07,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:07,583 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:07,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:16:07,584 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2006566482, now seen corresponding path program 1 times [2021-11-21 01:16:07,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983271431] [2021-11-21 01:16:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,650 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:07,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:07,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983271431] [2021-11-21 01:16:07,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983271431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:07,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:07,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:07,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699310106] [2021-11-21 01:16:07,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:07,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:07,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:07,654 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:07,710 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2021-11-21 01:16:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:07,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-21 01:16:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:07,712 INFO L225 Difference]: With dead ends: 70 [2021-11-21 01:16:07,712 INFO L226 Difference]: Without dead ends: 70 [2021-11-21 01:16:07,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:07,713 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 163 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:07,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 49 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:16:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-21 01:16:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-21 01:16:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 69 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2021-11-21 01:16:07,716 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 23 [2021-11-21 01:16:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2021-11-21 01:16:07,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2021-11-21 01:16:07,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:07,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:07,718 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:07,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:16:07,718 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2074022439, now seen corresponding path program 1 times [2021-11-21 01:16:07,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280907190] [2021-11-21 01:16:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:07,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:07,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280907190] [2021-11-21 01:16:07,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280907190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:07,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:07,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:07,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675323325] [2021-11-21 01:16:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:07,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:07,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:07,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:07,754 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:07,804 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2021-11-21 01:16:07,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:16:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:07,806 INFO L225 Difference]: With dead ends: 79 [2021-11-21 01:16:07,806 INFO L226 Difference]: Without dead ends: 79 [2021-11-21 01:16:07,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:07,807 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 47 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:07,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:16:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-21 01:16:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2021-11-21 01:16:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 68 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2021-11-21 01:16:07,810 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 24 [2021-11-21 01:16:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:07,811 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2021-11-21 01:16:07,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2021-11-21 01:16:07,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:07,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:07,812 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:07,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:16:07,812 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2074022440, now seen corresponding path program 1 times [2021-11-21 01:16:07,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980808551] [2021-11-21 01:16:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:07,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:07,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980808551] [2021-11-21 01:16:07,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980808551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:07,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:07,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:16:07,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593969441] [2021-11-21 01:16:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:07,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:07,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:07,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:07,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:07,863 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:07,939 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2021-11-21 01:16:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:16:07,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:16:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:07,940 INFO L225 Difference]: With dead ends: 66 [2021-11-21 01:16:07,940 INFO L226 Difference]: Without dead ends: 66 [2021-11-21 01:16:07,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:16:07,944 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 101 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:07,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 53 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:16:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-21 01:16:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-21 01:16:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2021-11-21 01:16:07,947 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 24 [2021-11-21 01:16:07,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:07,947 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-11-21 01:16:07,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2021-11-21 01:16:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:07,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:07,951 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:07,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:16:07,951 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:07,952 INFO L85 PathProgramCache]: Analyzing trace with hash -196990322, now seen corresponding path program 1 times [2021-11-21 01:16:07,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:07,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536709794] [2021-11-21 01:16:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:07,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:16:08,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:08,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536709794] [2021-11-21 01:16:08,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536709794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:08,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:08,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:08,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273315303] [2021-11-21 01:16:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:08,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:16:08,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:16:08,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:08,146 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:08,454 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2021-11-21 01:16:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:16:08,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 01:16:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:08,455 INFO L225 Difference]: With dead ends: 76 [2021-11-21 01:16:08,456 INFO L226 Difference]: Without dead ends: 76 [2021-11-21 01:16:08,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:16:08,456 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 203 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:08,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 87 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:16:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-21 01:16:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 65. [2021-11-21 01:16:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 45 states have (on average 1.5333333333333334) internal successors, (69), 64 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2021-11-21 01:16:08,459 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 27 [2021-11-21 01:16:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:08,459 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2021-11-21 01:16:08,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2021-11-21 01:16:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:08,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:08,460 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:08,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:16:08,460 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:08,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash -196990321, now seen corresponding path program 1 times [2021-11-21 01:16:08,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:08,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546170201] [2021-11-21 01:16:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:08,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:16:08,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:08,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546170201] [2021-11-21 01:16:08,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546170201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:08,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:08,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:08,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275365850] [2021-11-21 01:16:08,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:08,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:16:08,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:08,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:16:08,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:08,686 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:08,991 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2021-11-21 01:16:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:08,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 01:16:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:08,992 INFO L225 Difference]: With dead ends: 65 [2021-11-21 01:16:08,992 INFO L226 Difference]: Without dead ends: 65 [2021-11-21 01:16:08,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:16:08,993 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 152 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:08,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 105 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:16:08,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-21 01:16:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2021-11-21 01:16:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.511111111111111) internal successors, (68), 63 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-11-21 01:16:08,996 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 27 [2021-11-21 01:16:08,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:08,996 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-11-21 01:16:08,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:08,997 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-11-21 01:16:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:08,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:08,998 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:08,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:16:08,998 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash -196978592, now seen corresponding path program 1 times [2021-11-21 01:16:08,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602638397] [2021-11-21 01:16:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:08,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:09,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:09,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602638397] [2021-11-21 01:16:09,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602638397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:09,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:09,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:09,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260016598] [2021-11-21 01:16:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:09,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:09,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:09,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:09,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:09,049 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:09,112 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2021-11-21 01:16:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:16:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 01:16:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:09,113 INFO L225 Difference]: With dead ends: 72 [2021-11-21 01:16:09,114 INFO L226 Difference]: Without dead ends: 72 [2021-11-21 01:16:09,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:09,114 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 68 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:09,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 47 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-21 01:16:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2021-11-21 01:16:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 61 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-11-21 01:16:09,117 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 27 [2021-11-21 01:16:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:09,117 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-11-21 01:16:09,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-11-21 01:16:09,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:09,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:09,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:09,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:16:09,118 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash -196978591, now seen corresponding path program 1 times [2021-11-21 01:16:09,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:09,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729341638] [2021-11-21 01:16:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:09,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:09,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:09,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729341638] [2021-11-21 01:16:09,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729341638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:09,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:09,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:09,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639044658] [2021-11-21 01:16:09,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:09,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:16:09,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:09,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:16:09,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:09,208 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:09,262 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2021-11-21 01:16:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 01:16:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:09,263 INFO L225 Difference]: With dead ends: 60 [2021-11-21 01:16:09,264 INFO L226 Difference]: Without dead ends: 60 [2021-11-21 01:16:09,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:09,264 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 134 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:09,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 35 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-21 01:16:09,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-21 01:16:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-11-21 01:16:09,267 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 27 [2021-11-21 01:16:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:09,268 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-11-21 01:16:09,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,268 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-11-21 01:16:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:16:09,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:09,269 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:09,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:16:09,269 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1811366072, now seen corresponding path program 1 times [2021-11-21 01:16:09,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:09,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263900686] [2021-11-21 01:16:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:09,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:09,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:09,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263900686] [2021-11-21 01:16:09,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263900686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:09,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:09,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:09,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462086010] [2021-11-21 01:16:09,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:09,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:16:09,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:09,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:16:09,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:09,342 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:09,444 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2021-11-21 01:16:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:16:09,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:16:09,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:09,445 INFO L225 Difference]: With dead ends: 69 [2021-11-21 01:16:09,446 INFO L226 Difference]: Without dead ends: 69 [2021-11-21 01:16:09,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:09,446 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:09,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 80 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-21 01:16:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57. [2021-11-21 01:16:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-11-21 01:16:09,449 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 28 [2021-11-21 01:16:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:09,450 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-11-21 01:16:09,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-11-21 01:16:09,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:16:09,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:09,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:09,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:16:09,452 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:09,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1811366071, now seen corresponding path program 1 times [2021-11-21 01:16:09,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:09,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688029124] [2021-11-21 01:16:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:09,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:16:09,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:09,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688029124] [2021-11-21 01:16:09,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688029124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:09,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:09,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:09,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952381184] [2021-11-21 01:16:09,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:09,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:16:09,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:16:09,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:09,548 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:09,680 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-11-21 01:16:09,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:16:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:16:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:09,681 INFO L225 Difference]: With dead ends: 57 [2021-11-21 01:16:09,681 INFO L226 Difference]: Without dead ends: 57 [2021-11-21 01:16:09,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:09,682 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 101 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:09,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 65 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-21 01:16:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2021-11-21 01:16:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-11-21 01:16:09,684 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 28 [2021-11-21 01:16:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:09,684 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-11-21 01:16:09,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-11-21 01:16:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 01:16:09,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:09,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:09,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:16:09,685 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:09,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1261037849, now seen corresponding path program 1 times [2021-11-21 01:16:09,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:09,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468860959] [2021-11-21 01:16:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:09,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:16:09,840 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:09,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468860959] [2021-11-21 01:16:09,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468860959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:09,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:09,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 01:16:09,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935259808] [2021-11-21 01:16:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:09,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:16:09,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:09,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:16:09,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:09,842 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:10,026 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-21 01:16:10,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:10,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-21 01:16:10,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:10,028 INFO L225 Difference]: With dead ends: 55 [2021-11-21 01:16:10,028 INFO L226 Difference]: Without dead ends: 55 [2021-11-21 01:16:10,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:16:10,029 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 85 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:10,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 68 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-21 01:16:10,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-21 01:16:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.288888888888889) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-21 01:16:10,032 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2021-11-21 01:16:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:10,032 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-21 01:16:10,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-21 01:16:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 01:16:10,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:10,033 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:10,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:16:10,033 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1269590774, now seen corresponding path program 1 times [2021-11-21 01:16:10,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:10,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690160233] [2021-11-21 01:16:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:10,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:16:10,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:10,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690160233] [2021-11-21 01:16:10,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690160233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:10,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:10,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-21 01:16:10,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041651933] [2021-11-21 01:16:10,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:10,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:16:10,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:10,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:16:10,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:16:10,292 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:10,731 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2021-11-21 01:16:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:16:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-21 01:16:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:10,732 INFO L225 Difference]: With dead ends: 65 [2021-11-21 01:16:10,733 INFO L226 Difference]: Without dead ends: 65 [2021-11-21 01:16:10,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-21 01:16:10,733 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 185 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:10,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 98 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:16:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-21 01:16:10,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2021-11-21 01:16:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-21 01:16:10,736 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 32 [2021-11-21 01:16:10,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:10,736 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-21 01:16:10,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-21 01:16:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:16:10,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:10,737 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:10,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:16:10,737 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash -305946794, now seen corresponding path program 1 times [2021-11-21 01:16:10,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:10,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132099893] [2021-11-21 01:16:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:10,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:16:11,102 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:11,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132099893] [2021-11-21 01:16:11,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132099893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:11,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:11,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-21 01:16:11,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479438412] [2021-11-21 01:16:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:11,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 01:16:11,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:11,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 01:16:11,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:16:11,104 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:11,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:11,723 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2021-11-21 01:16:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:16:11,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 01:16:11,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:11,725 INFO L225 Difference]: With dead ends: 82 [2021-11-21 01:16:11,725 INFO L226 Difference]: Without dead ends: 82 [2021-11-21 01:16:11,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2021-11-21 01:16:11,726 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 226 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:11,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 103 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-21 01:16:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 57. [2021-11-21 01:16:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.297872340425532) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-11-21 01:16:11,728 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 34 [2021-11-21 01:16:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:11,729 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-11-21 01:16:11,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-11-21 01:16:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:16:11,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:11,730 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:11,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:16:11,730 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash -305946793, now seen corresponding path program 1 times [2021-11-21 01:16:11,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:11,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766405042] [2021-11-21 01:16:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:11,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:16:12,196 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:12,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766405042] [2021-11-21 01:16:12,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766405042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:12,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:12,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-21 01:16:12,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461889311] [2021-11-21 01:16:12,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:12,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 01:16:12,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 01:16:12,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:16:12,198 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:13,276 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-11-21 01:16:13,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-21 01:16:13,277 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 01:16:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:13,278 INFO L225 Difference]: With dead ends: 95 [2021-11-21 01:16:13,278 INFO L226 Difference]: Without dead ends: 95 [2021-11-21 01:16:13,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2021-11-21 01:16:13,279 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:13,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 99 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:16:13,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-21 01:16:13,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2021-11-21 01:16:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 57 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:13,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2021-11-21 01:16:13,282 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 34 [2021-11-21 01:16:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:13,283 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2021-11-21 01:16:13,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2021-11-21 01:16:13,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 01:16:13,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:13,284 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:13,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:16:13,284 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:13,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:13,285 INFO L85 PathProgramCache]: Analyzing trace with hash -894344243, now seen corresponding path program 1 times [2021-11-21 01:16:13,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:13,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110506558] [2021-11-21 01:16:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:13,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:16:13,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:13,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110506558] [2021-11-21 01:16:13,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110506558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:13,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:13,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-21 01:16:13,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531391807] [2021-11-21 01:16:13,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:13,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 01:16:13,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:13,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 01:16:13,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:16:13,650 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:14,395 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2021-11-21 01:16:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:16:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-21 01:16:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:14,396 INFO L225 Difference]: With dead ends: 71 [2021-11-21 01:16:14,396 INFO L226 Difference]: Without dead ends: 71 [2021-11-21 01:16:14,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2021-11-21 01:16:14,397 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 205 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:14,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 120 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:14,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-21 01:16:14,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2021-11-21 01:16:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.25) internal successors, (60), 57 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2021-11-21 01:16:14,400 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2021-11-21 01:16:14,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:14,401 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2021-11-21 01:16:14,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2021-11-21 01:16:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 01:16:14,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:14,402 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:14,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:16:14,402 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:16:14,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash -538336785, now seen corresponding path program 1 times [2021-11-21 01:16:14,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:14,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195282218] [2021-11-21 01:16:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:14,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:15,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:15,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195282218] [2021-11-21 01:16:15,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195282218] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581650768] [2021-11-21 01:16:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:15,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:15,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:15,057 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:15,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:16:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:15,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-21 01:16:15,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:15,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:16:15,336 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:16:15,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-21 01:16:15,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:15,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:15,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:16:15,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:15,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:16:15,597 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-11-21 01:16:15,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 20 [2021-11-21 01:16:15,793 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-21 01:16:15,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 28 treesize of output 30 [2021-11-21 01:16:15,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:15,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:16:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:15,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2021-11-21 01:16:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:15,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-21 01:16:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:16:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 64 [2021-11-21 01:16:16,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 50 [2021-11-21 01:16:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2021-11-21 01:16:16,274 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:16:16,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-11-21 01:16:16,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-21 01:16:16,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:16,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 65 [2021-11-21 01:16:16,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 52 [2021-11-21 01:16:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:16,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-21 01:16:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,985 INFO L354 Elim1Store]: treesize reduction 90, result has 21.1 percent of original size [2021-11-21 01:16:16,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 158 treesize of output 126 [2021-11-21 01:16:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:16,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:17,029 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-21 01:16:17,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 150 treesize of output 141 [2021-11-21 01:16:17,045 INFO L354 Elim1Store]: treesize reduction 35, result has 23.9 percent of original size [2021-11-21 01:16:17,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 144 treesize of output 116 [2021-11-21 01:16:17,267 INFO L354 Elim1Store]: treesize reduction 116, result has 12.8 percent of original size [2021-11-21 01:16:17,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 282 treesize of output 172 [2021-11-21 01:16:17,308 INFO L354 Elim1Store]: treesize reduction 212, result has 13.5 percent of original size [2021-11-21 01:16:17,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 295 treesize of output 195 [2021-11-21 01:16:17,326 INFO L354 Elim1Store]: treesize reduction 69, result has 25.0 percent of original size [2021-11-21 01:16:17,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 217 [2021-11-21 01:16:18,201 INFO L354 Elim1Store]: treesize reduction 142, result has 2.1 percent of original size [2021-11-21 01:16:18,201 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 7 new quantified variables, introduced 10 case distinctions, treesize of input 248 treesize of output 109 [2021-11-21 01:16:18,212 INFO L354 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2021-11-21 01:16:18,212 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 45 [2021-11-21 01:16:18,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-21 01:16:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:18,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:19:02,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 505817 treesize of output 496437 [2021-11-21 01:19:02,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3783048 treesize of output 3776176 [2021-11-21 01:19:09,704 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 01:19:09,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [795895569] [2021-11-21 01:19:09,707 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2021-11-21 01:19:09,707 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:19:09,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:19:09,708 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:19:09,708 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:19:09,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:19:09,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:09,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:19:10,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:10,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:10,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:19:10,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:10,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:10,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:19:10,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:19:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:19:10,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:19:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:10,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:19:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:19:11,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:19:11,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:19:11,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:19:11,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:19:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:11,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:19:12,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:19:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:12,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:12,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:19:12,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:12,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:19:13,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:13,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:19:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:19:14,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 28 [2021-11-21 01:19:14,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:19:14,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:19:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-21 01:19:14,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:14,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:19:14,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:19:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:19:15,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2021-11-21 01:19:15,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:15,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:19:16,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:19:16,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:19:17,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:19:17,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:17,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:19:17,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,444 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:19:17,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:19:17,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,556 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:19:17,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:19:17,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:17,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:17,753 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:19:17,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:19:17,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:17,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:17,953 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:19:17,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:19:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:19:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:18,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,613 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:19:18,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-21 01:19:18,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:18,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:18,675 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:19:18,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-21 01:19:20,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,095 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-21 01:19:20,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 215 treesize of output 189 [2021-11-21 01:19:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,168 INFO L354 Elim1Store]: treesize reduction 90, result has 38.4 percent of original size [2021-11-21 01:19:20,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 243 treesize of output 239 [2021-11-21 01:19:20,204 INFO L354 Elim1Store]: treesize reduction 37, result has 38.3 percent of original size [2021-11-21 01:19:20,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 216 [2021-11-21 01:19:20,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,773 INFO L354 Elim1Store]: treesize reduction 113, result has 11.7 percent of original size [2021-11-21 01:19:20,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 338 treesize of output 270 [2021-11-21 01:19:20,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:20,834 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-21 01:19:20,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 321 treesize of output 288 [2021-11-21 01:19:20,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:20,863 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:19:20,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 353 treesize of output 341 [2021-11-21 01:19:26,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:19:26,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:19:26,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:26,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:26,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:26,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:26,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:19:26,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:26,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:26,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:26,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:19:26,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:26,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:19:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:26,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:19:27,354 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:19:38,429 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:19:38,430 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:19:38,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-11-21 01:19:38,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978139757] [2021-11-21 01:19:38,430 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 01:19:38,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-21 01:19:38,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:38,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-21 01:19:38,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=5183, Unknown=56, NotChecked=0, Total=5550 [2021-11-21 01:19:38,433 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:40,740 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2021-11-21 01:19:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 01:19:40,741 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-21 01:19:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:40,745 INFO L225 Difference]: With dead ends: 69 [2021-11-21 01:19:40,746 INFO L226 Difference]: Without dead ends: 69 [2021-11-21 01:19:40,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2621 ImplicationChecksByTransitivity, 176.9s TimeCoverageRelationStatistics Valid=488, Invalid=7288, Unknown=56, NotChecked=0, Total=7832 [2021-11-21 01:19:40,749 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 213 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:40,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 157 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:19:40,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-21 01:19:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2021-11-21 01:19:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 58 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2021-11-21 01:19:40,752 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 37 [2021-11-21 01:19:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:40,752 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2021-11-21 01:19:40,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2021-11-21 01:19:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-21 01:19:40,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:40,754 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:40,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:40,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-21 01:19:40,969 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr32REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:19:40,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash 491429374, now seen corresponding path program 1 times [2021-11-21 01:19:40,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:40,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448724915] [2021-11-21 01:19:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:40,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:41,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:41,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448724915] [2021-11-21 01:19:41,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448724915] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:19:41,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148202478] [2021-11-21 01:19:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:41,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:41,737 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:41,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:19:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:41,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-21 01:19:41,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:41,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:19:41,868 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:19:41,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-21 01:19:42,088 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:19:42,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-21 01:19:42,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:19:42,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,516 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-21 01:19:42,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 43 [2021-11-21 01:19:42,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,764 INFO L354 Elim1Store]: treesize reduction 88, result has 32.8 percent of original size [2021-11-21 01:19:42,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 65 [2021-11-21 01:19:42,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:19:42,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:42,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,002 INFO L354 Elim1Store]: treesize reduction 92, result has 15.6 percent of original size [2021-11-21 01:19:43,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 112 treesize of output 78 [2021-11-21 01:19:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,186 INFO L354 Elim1Store]: treesize reduction 116, result has 12.8 percent of original size [2021-11-21 01:19:43,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 90 [2021-11-21 01:19:43,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:19:43,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,402 INFO L354 Elim1Store]: treesize reduction 121, result has 6.9 percent of original size [2021-11-21 01:19:43,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 128 treesize of output 89 [2021-11-21 01:19:43,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-21 01:19:43,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-21 01:19:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,829 INFO L354 Elim1Store]: treesize reduction 138, result has 11.0 percent of original size [2021-11-21 01:19:43,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 130 treesize of output 91 [2021-11-21 01:19:44,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,440 INFO L354 Elim1Store]: treesize reduction 264, result has 16.2 percent of original size [2021-11-21 01:19:44,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 207 treesize of output 152 [2021-11-21 01:19:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:44,478 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-21 01:19:44,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 185 treesize of output 176 [2021-11-21 01:19:44,798 INFO L354 Elim1Store]: treesize reduction 274, result has 11.6 percent of original size [2021-11-21 01:19:44,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 348 treesize of output 214 [2021-11-21 01:19:44,833 INFO L354 Elim1Store]: treesize reduction 188, result has 13.4 percent of original size [2021-11-21 01:19:44,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 364 treesize of output 278 [2021-11-21 01:19:46,498 INFO L354 Elim1Store]: treesize reduction 130, result has 2.3 percent of original size [2021-11-21 01:19:46,498 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 297 treesize of output 245 [2021-11-21 01:19:48,799 INFO L354 Elim1Store]: treesize reduction 138, result has 16.4 percent of original size [2021-11-21 01:19:48,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 224 treesize of output 99 [2021-11-21 01:19:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:51,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:20:01,868 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| Int)) (let ((.cse10 (+ |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset| 4))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|) .cse10 |c_ULTIMATE.start_dll_prepend_#t~mem8#1.offset|)))) (or (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| (select (select .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (= (select |c_#valid| (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|) .cse10 |c_ULTIMATE.start_dll_prepend_#t~mem8#1.base|)))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse8 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| 8))) (let ((.cse4 (let ((.cse9 (store .cse0 .cse7 (store (select .cse0 .cse7) .cse8 |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|)))) (store .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|)))) (.cse1 (let ((.cse5 (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|)))) (store .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse1 (select (select .cse1 .cse2) .cse3)) (+ (select (select .cse4 .cse2) .cse3) 4))))))) 1))))) is different from false [2021-11-21 01:20:32,269 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| Int)) (let ((.cse11 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse12 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_8))) (store .cse12 .cse11 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse12) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (or (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| (select (select .cse0 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (= (select |c_#valid| (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse10 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_9))) (store .cse10 .cse11 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse10) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse8 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| 8))) (let ((.cse4 (let ((.cse9 (store .cse0 .cse7 (store (select .cse0 .cse7) .cse8 |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (store .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse1 (let ((.cse5 (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ 4 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select .cse1 (select (select .cse1 .cse2) .cse3)) (+ (select (select .cse4 .cse2) .cse3) 4))))))) 1))))) is different from false [2021-11-21 01:20:34,326 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| Int)) (let ((.cse11 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4)) (.cse12 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 8))) (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse13 (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse12 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_8))) (store .cse13 .cse11 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse13) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (or (= (select |c_#valid| (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse10 (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse12 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_9))) (store .cse10 .cse11 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse10) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse7 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| 8))) (let ((.cse3 (let ((.cse8 (store .cse9 .cse6 (store (select .cse9 .cse6) .cse7 |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (store .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse0 (let ((.cse4 (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ 4 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ 4 (select (select .cse3 .cse1) .cse2)))))))) 1) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| (select (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) is different from false [2021-11-21 01:20:36,383 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_9 Int) (v_DerPreprocessor_8 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| Int)) (let ((.cse11 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4)) (.cse12 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 8))) (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse13 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse11 0) .cse12 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_8))) (store .cse13 .cse11 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse13) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (or (= (select |c_#valid| (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse10 (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse11 0) .cse12 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_9))) (store .cse10 .cse11 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse10) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse6 (select (select .cse5 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse7 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| 8))) (let ((.cse3 (let ((.cse8 (store .cse9 .cse6 (store (select .cse9 .cse6) .cse7 |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (store .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse0 (let ((.cse4 (store .cse5 .cse6 (store (select .cse5 .cse6) .cse7 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4))))))) 1) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_23| (select (select .cse9 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) is different from false [2021-11-21 01:20:36,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19962 treesize of output 19666 [2021-11-21 01:20:36,606 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 01:20:36,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1871072278] [2021-11-21 01:20:36,608 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-21 01:20:36,609 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:20:36,609 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:20:36,609 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:20:36,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:20:36,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:20:36,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:20:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:36,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:20:37,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:37,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:37,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:37,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:20:37,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:37,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-21 01:20:37,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:20:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:20:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:20:38,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:20:38,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-21 01:20:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:20:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:20:38,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:20:38,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:20:38,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:20:38,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:39,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:39,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-21 01:20:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-21 01:20:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:20:40,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-21 01:20:40,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-21 01:20:40,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 28 [2021-11-21 01:20:40,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-21 01:20:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-21 01:20:40,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:40,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:41,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:20:41,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:41,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:20:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2021-11-21 01:20:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:20:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:41,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-21 01:20:43,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:20:43,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:20:43,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:20:43,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-21 01:20:43,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:43,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:43,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:20:43,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,779 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:43,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:20:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:43,922 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:20:43,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:20:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:43,979 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:20:43,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 39 [2021-11-21 01:20:44,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,669 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:44,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-21 01:20:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,809 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:44,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 39 [2021-11-21 01:20:44,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:20:46,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,397 INFO L354 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2021-11-21 01:20:46,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 215 treesize of output 189 [2021-11-21 01:20:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,476 INFO L354 Elim1Store]: treesize reduction 82, result has 38.8 percent of original size [2021-11-21 01:20:46,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 221 treesize of output 215 [2021-11-21 01:20:46,512 INFO L354 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2021-11-21 01:20:46,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 210 treesize of output 196 [2021-11-21 01:20:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,922 INFO L354 Elim1Store]: treesize reduction 113, result has 11.7 percent of original size [2021-11-21 01:20:46,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 316 treesize of output 270 [2021-11-21 01:20:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,984 INFO L354 Elim1Store]: treesize reduction 106, result has 23.2 percent of original size [2021-11-21 01:20:46,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 321 treesize of output 288 [2021-11-21 01:20:46,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:47,014 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:20:47,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 353 treesize of output 341 [2021-11-21 01:20:55,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:20:55,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:20:55,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:55,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:55,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:55,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:55,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:55,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:55,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:20:55,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:55,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:20:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:55,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:20:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:55,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:20:56,395 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:21:04,948 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:21:04,948 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:21:04,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2021-11-21 01:21:04,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153510393] [2021-11-21 01:21:04,949 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 01:21:04,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-21 01:21:04,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:21:04,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-21 01:21:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=5331, Unknown=23, NotChecked=604, Total=6320 [2021-11-21 01:21:04,951 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:07,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:21:07,220 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2021-11-21 01:21:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-21 01:21:07,220 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-21 01:21:07,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:21:07,221 INFO L225 Difference]: With dead ends: 88 [2021-11-21 01:21:07,221 INFO L226 Difference]: Without dead ends: 88 [2021-11-21 01:21:07,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2893 ImplicationChecksByTransitivity, 59.1s TimeCoverageRelationStatistics Valid=597, Invalid=8138, Unknown=23, NotChecked=748, Total=9506 [2021-11-21 01:21:07,224 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 280 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:21:07,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 157 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 01:21:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-21 01:21:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 61. [2021-11-21 01:21:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 60 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2021-11-21 01:21:07,227 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 38 [2021-11-21 01:21:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:21:07,227 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2021-11-21 01:21:07,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2021-11-21 01:21:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-21 01:21:07,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:21:07,228 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:21:07,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-21 01:21:07,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-21 01:21:07,429 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 41 more)] === [2021-11-21 01:21:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:21:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash 491429375, now seen corresponding path program 1 times [2021-11-21 01:21:07,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:21:07,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743509868] [2021-11-21 01:21:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:07,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:21:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:21:08,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:21:08,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743509868] [2021-11-21 01:21:08,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743509868] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:21:08,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885614874] [2021-11-21 01:21:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:08,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:21:08,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:21:08,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:21:08,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f33d0f-a0f9-45d7-98a9-f34089b79730/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:21:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:08,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-21 01:21:08,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:21:08,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:21:08,593 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:21:08,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-21 01:21:08,782 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:21:08,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2021-11-21 01:21:08,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:21:08,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:21:09,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:21:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-21 01:21:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,196 INFO L354 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2021-11-21 01:21:09,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 99 [2021-11-21 01:21:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,215 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-11-21 01:21:09,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 101 [2021-11-21 01:21:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,485 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-11-21 01:21:09,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 33 treesize of output 33 [2021-11-21 01:21:09,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-21 01:21:09,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,718 INFO L354 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2021-11-21 01:21:09,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 188 treesize of output 133 [2021-11-21 01:21:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,747 INFO L354 Elim1Store]: treesize reduction 148, result has 15.4 percent of original size [2021-11-21 01:21:09,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 190 treesize of output 177 [2021-11-21 01:21:09,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,933 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-21 01:21:09,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 179 treesize of output 133 [2021-11-21 01:21:09,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:09,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:09,963 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-21 01:21:09,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 143 treesize of output 154 [2021-11-21 01:21:10,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,159 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:21:10,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 161 treesize of output 139 [2021-11-21 01:21:10,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,171 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-21 01:21:10,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 182 treesize of output 185 [2021-11-21 01:21:10,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:10,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,552 INFO L354 Elim1Store]: treesize reduction 105, result has 12.5 percent of original size [2021-11-21 01:21:10,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 201 treesize of output 204 [2021-11-21 01:21:10,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:10,583 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-21 01:21:10,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 190 treesize of output 132 [2021-11-21 01:21:11,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:11,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,199 INFO L354 Elim1Store]: treesize reduction 202, result has 19.5 percent of original size [2021-11-21 01:21:11,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 218 treesize of output 164 [2021-11-21 01:21:11,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:11,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:11,261 INFO L354 Elim1Store]: treesize reduction 282, result has 17.8 percent of original size [2021-11-21 01:21:11,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 209 treesize of output 211 [2021-11-21 01:21:11,553 INFO L354 Elim1Store]: treesize reduction 210, result has 7.5 percent of original size [2021-11-21 01:21:11,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 330 treesize of output 202 [2021-11-21 01:21:11,601 INFO L354 Elim1Store]: treesize reduction 390, result has 6.9 percent of original size [2021-11-21 01:21:11,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 336 treesize of output 299 [2021-11-21 01:21:14,715 INFO L354 Elim1Store]: treesize reduction 314, result has 5.7 percent of original size [2021-11-21 01:21:14,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 14 new quantified variables, introduced 36 case distinctions, treesize of input 342 treesize of output 165 [2021-11-21 01:21:14,772 INFO L354 Elim1Store]: treesize reduction 266, result has 2.6 percent of original size [2021-11-21 01:21:14,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 120 treesize of output 90 [2021-11-21 01:21:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:21:14,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:21:17,670 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| Int)) (or (let ((.cse8 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse9 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| 8))) (let ((.cse4 (let ((.cse10 (store |c_#memory_$Pointer$.offset| .cse8 (store (select |c_#memory_$Pointer$.offset| .cse8) .cse9 |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|)))) (store .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.offset|)))) (.cse1 (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse8 (store (select |c_#memory_$Pointer$.base| .cse8) .cse9 |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|)))) (store .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_dll_prepend_~new_head~1#1.base|))))) (let ((.cse5 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse2 (select (select .cse1 .cse5) .cse6)) (.cse3 (+ (select (select .cse4 .cse5) .cse6) 4))) (let ((.cse0 (select (select .cse4 .cse2) .cse3))) (and (<= (+ .cse0 8) (select |c_#length| (select (select .cse1 .cse2) .cse3))) (<= 0 (+ .cse0 4)))))))) (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))) is different from false [2021-11-21 01:22:11,680 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_10 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| Int)) (or (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse0 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse0 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse0) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (and (forall ((v_DerPreprocessor_11 Int)) (let ((.cse14 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse15 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_11))) (store .cse15 .cse14 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse15) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse10 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| 8))) (let ((.cse1 (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse13 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse13 .cse14 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse13) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (store .cse12 .cse9 (store (select .cse12 .cse9) .cse10 |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (store .cse11 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse4 (let ((.cse7 (store .cse8 .cse9 (store (select .cse8 .cse9) .cse10 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse2 (select (select .cse4 .cse5) .cse6)) (.cse3 (+ 4 (select (select .cse1 .cse5) .cse6)))) (<= (+ 8 (select (select .cse1 .cse2) .cse3)) (select |c_#length| (select (select .cse4 .cse2) .cse3)))))))))) (forall ((v_DerPreprocessor_11 Int)) (<= 0 (+ (let ((.cse27 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse21 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse28 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_11))) (store .cse28 .cse27 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse28) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse22 (select (select .cse21 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse23 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| 8))) (let ((.cse16 (let ((.cse24 (let ((.cse25 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse26 (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse26 .cse27 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse26) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (store .cse25 .cse22 (store (select .cse25 .cse22) .cse23 |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (store .cse24 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse24 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse17 (let ((.cse20 (store .cse21 .cse22 (store (select .cse21 .cse22) .cse23 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse20 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse20 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse18 (select (select .cse17 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse19 (+ (select (select .cse16 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse16 (select (select .cse17 .cse18) .cse19)) (+ 4 (select (select .cse16 .cse18) .cse19)))))))) 4)))))) is different from false [2021-11-21 01:23:14,301 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_10 Int) (|v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| Int)) (or (< |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse1 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4))) (let ((.cse0 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse1 0) (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 8) 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse0 .cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse0) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|))))) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (and (forall ((v_DerPreprocessor_11 Int)) (<= 0 (+ (let ((.cse13 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4)) (.cse14 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 8))) (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse15 (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse13 0) .cse14 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_11))) (store .cse15 .cse13 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse15) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse9 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| 8))) (let ((.cse2 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse12 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse13 0) .cse14 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse12 .cse13 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse12) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (store .cse11 .cse8 (store (select .cse11 .cse8) .cse9 |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (store .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse3 (let ((.cse6 (store .cse7 .cse8 (store (select .cse7 .cse8) .cse9 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (+ 4 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (select (select .cse2 (select (select .cse3 .cse4) .cse5)) (+ (select (select .cse2 .cse4) .cse5) 4))))))) 4))) (forall ((v_DerPreprocessor_11 Int)) (let ((.cse29 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 4)) (.cse30 (+ |c_ULTIMATE.start_node_create_~temp~0#1.offset| 8))) (let ((.cse23 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse31 (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse29 0) .cse30 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_11))) (store .cse31 .cse29 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse31) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (let ((.cse24 (select (select .cse23 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)) (.cse25 (+ |v_ULTIMATE.start_dll_prepend_#t~mem10#1.offset_28| 8))) (let ((.cse16 (let ((.cse26 (let ((.cse27 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| (let ((.cse28 (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|) .cse29 0) .cse30 0) |c_ULTIMATE.start_node_create_~temp~0#1.offset| v_DerPreprocessor_10))) (store .cse28 .cse29 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| .cse28) |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset|)))))) (store .cse27 .cse24 (store (select .cse27 .cse24) .cse25 |c_ULTIMATE.start_node_create_~temp~0#1.offset|))))) (store .cse26 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse26 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.offset|)))) (.cse19 (let ((.cse22 (store .cse23 .cse24 (store (select .cse23 .cse24) .cse25 |c_ULTIMATE.start_node_create_~temp~0#1.base|)))) (store .cse22 |c_ULTIMATE.start_dll_prepend_~head#1.base| (store (select .cse22 |c_ULTIMATE.start_dll_prepend_~head#1.base|) |c_ULTIMATE.start_dll_prepend_~head#1.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base|))))) (let ((.cse20 (select (select .cse19 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse21 (+ 4 (select (select .cse16 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (let ((.cse17 (select (select .cse19 .cse20) .cse21)) (.cse18 (+ (select (select .cse16 .cse20) .cse21) 4))) (<= (+ (select (select .cse16 .cse17) .cse18) 8) (select |c_#length| (select (select .cse19 .cse17) .cse18))))))))))))) is different from false [2021-11-21 01:23:17,040 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:23:17,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11801 treesize of output 11805