./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/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_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:45:47,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:45:47,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:45:47,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:45:47,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:45:47,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:45:47,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:45:47,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:45:47,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:45:47,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:45:47,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:45:47,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:45:47,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:45:47,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:45:47,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:45:47,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:45:47,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:45:47,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:45:47,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:45:47,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:45:47,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:45:47,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:45:47,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:45:47,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:45:47,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:45:47,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:45:47,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:45:47,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:45:47,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:45:47,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:45:47,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:45:47,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:45:47,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:45:47,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:45:47,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:45:47,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:45:47,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:45:47,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:45:47,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:45:47,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:45:47,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:45:47,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:45:47,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:45:47,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:45:47,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:45:47,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:45:47,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:45:47,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:45:47,908 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:45:47,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:45:47,908 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:45:47,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:45:47,910 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:45:47,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:45:47,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:45:47,910 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:45:47,911 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:45:47,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:45:47,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:45:47,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:45:47,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:45:47,913 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:45:47,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:45:47,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:45:47,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:45:47,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:45:47,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:45:47,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:45:47,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:45:47,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:45:47,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:45:47,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:45:47,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:45:47,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:45:47,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:45:47,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:45:47,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:45:47,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:45:47,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:45:47,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:45:47,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:45:47,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:45:47,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:45:47,920 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_82d1814d-4d7e-4298-a785-548f5d740033/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2021-11-20 23:45:48,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:45:48,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:45:48,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:45:48,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:45:48,225 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:45:48,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2021-11-20 23:45:48,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/data/78ddfc29a/ea326fc96f494f77a0c42d4bfd62aef9/FLAG3346b9e52 [2021-11-20 23:45:48,937 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:45:48,938 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2021-11-20 23:45:48,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/data/78ddfc29a/ea326fc96f494f77a0c42d4bfd62aef9/FLAG3346b9e52 [2021-11-20 23:45:49,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/data/78ddfc29a/ea326fc96f494f77a0c42d4bfd62aef9 [2021-11-20 23:45:49,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:45:49,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:45:49,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:45:49,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:45:49,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:45:49,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:49" (1/1) ... [2021-11-20 23:45:49,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a4d157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:49, skipping insertion in model container [2021-11-20 23:45:49,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:45:49" (1/1) ... [2021-11-20 23:45:49,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:45:49,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:45:49,811 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_82d1814d-4d7e-4298-a785-548f5d740033/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2021-11-20 23:45:49,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:45:49,941 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:45:49,969 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_82d1814d-4d7e-4298-a785-548f5d740033/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2021-11-20 23:45:50,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:45:50,070 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:45:50,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50 WrapperNode [2021-11-20 23:45:50,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:45:50,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:45:50,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:45:50,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:45:50,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,195 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-20 23:45:50,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:45:50,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:45:50,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:45:50,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:45:50,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:45:50,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:45:50,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:45:50,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:45:50,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (1/1) ... [2021-11-20 23:45:50,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:45:50,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:45:50,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:45:50,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:45:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:45:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:45:50,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:45:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:45:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:45:50,441 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:45:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:45:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:45:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:45:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:45:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:45:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:45:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:45:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:45:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:45:50,649 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:45:50,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:45:51,351 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:45:51,658 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:45:51,658 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-20 23:45:51,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:45:51 BoogieIcfgContainer [2021-11-20 23:45:51,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:45:51,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:45:51,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:45:51,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:45:51,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:45:49" (1/3) ... [2021-11-20 23:45:51,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2b715c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:45:51, skipping insertion in model container [2021-11-20 23:45:51,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:45:50" (2/3) ... [2021-11-20 23:45:51,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2b715c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:45:51, skipping insertion in model container [2021-11-20 23:45:51,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:45:51" (3/3) ... [2021-11-20 23:45:51,671 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2021-11-20 23:45:51,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:45:51,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:45:51,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:45:51,778 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:45:51,782 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:45:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:45:51,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:45:51,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:45:51,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:45:51,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:45:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:45:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-20 23:45:51,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:45:51,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811289890] [2021-11-20 23:45:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:45:51,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:45:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:45:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:45:51,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:45:51,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811289890] [2021-11-20 23:45:51,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811289890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:45:51,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:45:51,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:45:51,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729256718] [2021-11-20 23:45:51,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:45:51,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:45:51,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:45:52,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:45:52,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:45:52,010 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:45:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:45:53,392 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-20 23:45:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:45:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 23:45:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:45:53,420 INFO L225 Difference]: With dead ends: 209 [2021-11-20 23:45:53,420 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:45:53,424 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 [2021-11-20 23:45:53,428 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:45:53,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:45:53,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:45:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-20 23:45:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:45:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-20 23:45:53,479 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-20 23:45:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:45:53,480 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-20 23:45:53,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:45:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-20 23:45:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 23:45:53,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:45:53,483 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-11-20 23:45:53,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:45:53,484 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:45:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:45:53,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-20 23:45:53,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:45:53,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296453560] [2021-11-20 23:45:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:45:53,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:45:53,504 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:45:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556295338] [2021-11-20 23:45:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:45:53,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:45:53,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:45:53,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:45:53,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:45:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:45:53,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:45:53,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:45:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:45:53,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:45:54,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:45:54,006 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:45:54,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296453560] [2021-11-20 23:45:54,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:45:54,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556295338] [2021-11-20 23:45:54,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556295338] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:45:54,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1989239314] [2021-11-20 23:45:54,058 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-20 23:45:54,059 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:45:54,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:45:54,071 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:45:54,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:45:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:54,281 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 22 treesize of output 7 [2021-11-20 23:45:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:54,309 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 22 treesize of output 7 [2021-11-20 23:45:54,350 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:45:54,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-20 23:45:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:54,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:45:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:54,409 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:45:54,411 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 33 treesize of output 43 [2021-11-20 23:45:54,501 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:45:54,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:45:55,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:45:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:45:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:45:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:55,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:45:56,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:45:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:45:56,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:45:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:45:56,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:45:57,028 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:45:57,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1989239314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:45:57,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:45:57,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-20 23:45:57,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056223755] [2021-11-20 23:45:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:45:57,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:45:57,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:45:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:45:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:45:57,620 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:46:00,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:00,055 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-20 23:46:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:46:00,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-20 23:46:00,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:00,070 INFO L225 Difference]: With dead ends: 173 [2021-11-20 23:46:00,070 INFO L226 Difference]: Without dead ends: 94 [2021-11-20 23:46:00,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:46:00,073 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:00,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:46:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-20 23:46:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-20 23:46:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:46:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-20 23:46:00,098 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-20 23:46:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:00,099 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-20 23:46:00,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:46:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-20 23:46:00,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:46:00,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:00,102 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:46:00,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:46:00,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:00,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-20 23:46:00,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:00,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085423439] [2021-11-20 23:46:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:00,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:00,340 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:46:00,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681914415] [2021-11-20 23:46:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:00,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:00,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:00,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:46:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:00,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:46:00,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:46:00,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:46:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:46:00,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085423439] [2021-11-20 23:46:00,764 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:46:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681914415] [2021-11-20 23:46:00,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681914415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:46:00,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [263317680] [2021-11-20 23:46:00,769 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:46:00,769 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:46:00,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:46:00,770 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:46:00,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:46:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:00,856 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 22 treesize of output 7 [2021-11-20 23:46:00,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:00,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:46:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:00,887 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:46:00,887 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 33 treesize of output 43 [2021-11-20 23:46:00,940 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:46:00,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:46:00,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:00,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:46:00,989 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 [2021-11-20 23:46:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:01,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:02,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:46:02,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:46:02,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:02,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,217 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 28 treesize of output 31 [2021-11-20 23:46:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-20 23:46:02,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:46:02,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,438 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 100 treesize of output 105 [2021-11-20 23:46:02,481 INFO L354 Elim1Store]: treesize reduction 94, result has 14.5 percent of original size [2021-11-20 23:46:02,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-20 23:46:02,546 INFO L354 Elim1Store]: treesize reduction 184, result has 10.2 percent of original size [2021-11-20 23:46:02,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 116 treesize of output 119 [2021-11-20 23:46:02,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,633 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 41 treesize of output 46 [2021-11-20 23:46:02,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:02,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:46:04,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:46:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:46:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:04,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:04,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-20 23:46:04,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:46:04,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,934 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 28 treesize of output 31 [2021-11-20 23:46:04,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:04,958 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 28 treesize of output 31 [2021-11-20 23:46:05,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,097 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 41 treesize of output 46 [2021-11-20 23:46:05,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,135 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:46:05,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:46:05,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,195 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 100 treesize of output 105 [2021-11-20 23:46:05,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,295 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:46:05,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:46:05,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:05,348 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:46:05,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 135 treesize of output 143 [2021-11-20 23:46:05,618 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-20 23:46:05,789 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:46:06,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [263317680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:46:06,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:46:06,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-20 23:46:06,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336169726] [2021-11-20 23:46:06,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:46:06,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:46:06,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:46:06,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:46:06,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:46:06,819 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:46:09,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:46:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:46:11,242 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-20 23:46:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 23:46:11,252 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 23:46:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:46:11,254 INFO L225 Difference]: With dead ends: 175 [2021-11-20 23:46:11,254 INFO L226 Difference]: Without dead ends: 96 [2021-11-20 23:46:11,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:46:11,256 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:46:11,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 1 Unknown, 53 Unchecked, 4.4s Time] [2021-11-20 23:46:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-20 23:46:11,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-20 23:46:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:46:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-20 23:46:11,275 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-20 23:46:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:46:11,275 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-20 23:46:11,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:46:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-20 23:46:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-20 23:46:11,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:46:11,278 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:46:11,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:46:11,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:11,485 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:46:11,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:46:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-20 23:46:11,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:46:11,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443649477] [2021-11-20 23:46:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:11,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:46:11,498 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:46:11,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966977168] [2021-11-20 23:46:11,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:46:11,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:46:11,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:46:11,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:46:11,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d1814d-4d7e-4298-a785-548f5d740033/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:46:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:46:11,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:46:11,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:46:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:46:11,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:46:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:46:11,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:46:11,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443649477] [2021-11-20 23:46:11,955 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:46:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966977168] [2021-11-20 23:46:11,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966977168] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:46:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1637371125] [2021-11-20 23:46:11,963 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:46:11,963 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:46:11,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:46:11,964 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:46:11,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:46:12,076 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:46:12,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:46:12,102 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 [2021-11-20 23:46:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:12,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:46:12,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:12,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:46:12,162 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 33 treesize of output 39 [2021-11-20 23:46:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:12,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:46:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:46:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:46:13,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:13,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:46:13,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-20 23:46:13,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:46:13,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,405 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 28 treesize of output 31 [2021-11-20 23:46:13,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,461 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 28 treesize of output 31 [2021-11-20 23:46:13,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,570 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:46:13,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:46:13,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,624 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 100 treesize of output 105 [2021-11-20 23:46:13,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,712 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:46:13,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:46:13,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,751 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:46:13,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 135 treesize of output 143 [2021-11-20 23:46:13,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:13,853 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 41 treesize of output 46 [2021-11-20 23:46:14,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:46:14,248 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 14 treesize of output 10 [2021-11-20 23:46:14,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:46:14,304 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 23:46:14,305 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 98 treesize of output 97 [2021-11-20 23:46:14,334 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:46:14,334 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 94 treesize of output 93 [2021-11-20 23:46:14,354 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 23:46:14,354 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 90 treesize of output 89 [2021-11-20 23:46:14,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:46:14,410 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 14 treesize of output 10 [2021-11-20 23:46:14,421 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 14 treesize of output 10 [2021-11-20 23:46:14,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 23:46:14,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:46:14,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-20 23:46:14,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:46:14,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 23:46:14,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:14,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-20 23:46:23,528 WARN L227 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:46:23,528 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:46:23,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-20 23:46:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:34,664 WARN L227 SmtUtils]: Spent 11.11s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:46:34,665 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:46:34,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-20 23:46:46,701 WARN L227 SmtUtils]: Spent 11.93s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:46:46,702 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-20 23:46:46,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-20 23:46:48,085 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-20 23:46:48,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-20 23:46:49,057 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-20 23:46:49,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-20 23:46:50,843 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:46:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:51,281 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 23:46:51,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-20 23:46:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:46:52,120 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-20 23:46:52,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46