./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur --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 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:47:12,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:47:12,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:47:12,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:47:12,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:47:12,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:47:12,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:47:12,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:47:12,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:47:12,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:47:12,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:47:12,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:47:12,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:47:12,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:47:12,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:47:12,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:47:12,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:47:12,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:47:12,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:47:12,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:47:12,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:47:12,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:47:12,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:47:12,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:47:12,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:47:12,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:47:12,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:47:12,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:47:12,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:47:12,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:47:12,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:47:12,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:47:12,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:47:12,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:47:12,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:47:12,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:47:12,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:47:12,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:47:12,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:47:12,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:47:12,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:47:12,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:47:12,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:47:12,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:47:12,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:47:12,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:47:12,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:47:12,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:47:12,160 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:47:12,160 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:47:12,160 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:47:12,160 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:47:12,161 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:47:12,161 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:47:12,161 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:47:12,162 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:47:12,162 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:47:12,162 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:47:12,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:47:12,162 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:47:12,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:47:12,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:47:12,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:47:12,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:47:12,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:47:12,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:47:12,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:47:12,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:47:12,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:47:12,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:47:12,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:47:12,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:47:12,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:47:12,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:47:12,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:12,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:47:12,167 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:47:12,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:47:12,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:47:12,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:47:12,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:47:12,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:47:12,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:47:12,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 [2022-11-26 00:47:12,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:47:12,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:47:12,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:47:12,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:47:12,539 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:47:12,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-26 00:47:15,571 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:47:15,938 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:47:15,938 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-26 00:47:15,955 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/data/1cb670df9/e6515c71722645db803df3e2824f76d6/FLAG015aba4b1 [2022-11-26 00:47:15,976 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/data/1cb670df9/e6515c71722645db803df3e2824f76d6 [2022-11-26 00:47:15,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:47:15,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:47:15,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:47:15,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:47:15,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:47:15,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:47:15" (1/1) ... [2022-11-26 00:47:15,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da4db14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:15, skipping insertion in model container [2022-11-26 00:47:15,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:47:15" (1/1) ... [2022-11-26 00:47:16,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:47:16,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:47:16,488 WARN L237 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_71277ba0-9faf-4f68-a377-365877e8ec47/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-26 00:47:16,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:47:16,701 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:47:16,731 WARN L237 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_71277ba0-9faf-4f68-a377-365877e8ec47/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-26 00:47:16,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:47:16,838 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:47:16,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16 WrapperNode [2022-11-26 00:47:16,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:47:16,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:47:16,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:47:16,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:47:16,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:16,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,019 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-26 00:47:17,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:47:17,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:47:17,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:47:17,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:47:17,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:47:17,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:47:17,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:47:17,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:47:17,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (1/1) ... [2022-11-26 00:47:17,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:17,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:47:17,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:47:17,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:47:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:47:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:47:17,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:47:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:47:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:47:17,233 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:47:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:47:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:47:17,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:47:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:47:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:47:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:47:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:47:17,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:47:17,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:47:17,524 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:47:17,526 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:47:19,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:47:20,496 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:47:20,496 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-26 00:47:20,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:47:20 BoogieIcfgContainer [2022-11-26 00:47:20,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:47:20,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:47:20,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:47:20,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:47:20,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:47:15" (1/3) ... [2022-11-26 00:47:20,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8f9518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:47:20, skipping insertion in model container [2022-11-26 00:47:20,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:16" (2/3) ... [2022-11-26 00:47:20,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8f9518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:47:20, skipping insertion in model container [2022-11-26 00:47:20,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:47:20" (3/3) ... [2022-11-26 00:47:20,511 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-1.i [2022-11-26 00:47:20,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:47:20,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:47:20,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:47:20,604 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4cb8eb8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:47:20,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:47:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:47:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:47:20,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:20,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:20,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:47:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:20,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-26 00:47:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010905304] [2022-11-26 00:47:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:20,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:20,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010905304] [2022-11-26 00:47:20,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010905304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:20,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:20,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:47:20,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764979814] [2022-11-26 00:47:20,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:20,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:20,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:20,913 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-11-26 00:47:23,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:47:26,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:47:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:27,042 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-26 00:47:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:27,052 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 [2022-11-26 00:47:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:27,065 INFO L225 Difference]: With dead ends: 347 [2022-11-26 00:47:27,065 INFO L226 Difference]: Without dead ends: 220 [2022-11-26 00:47:27,069 INFO L412 NwaCegarLoop]: 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 [2022-11-26 00:47:27,074 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 96 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:27,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:47:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-26 00:47:27,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-26 00:47:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:47:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-26 00:47:27,139 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-26 00:47:27,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:27,139 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-26 00:47:27,140 INFO L496 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) [2022-11-26 00:47:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-26 00:47:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-26 00:47:27,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:27,144 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:27,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:47:27,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:47:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-26 00:47:27,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200254734] [2022-11-26 00:47:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:27,544 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:47:27,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707631123] [2022-11-26 00:47:27,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:47:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:47:27,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:47:27,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:47:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:29,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:47:29,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:47:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:29,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:47:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:29,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:29,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200254734] [2022-11-26 00:47:29,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:47:29,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707631123] [2022-11-26 00:47:29,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707631123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:47:29,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1860962213] [2022-11-26 00:47:29,508 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-26 00:47:29,509 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:47:29,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:47:29,523 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:47:29,524 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:47:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:29,761 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:29,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:29,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:29,800 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:29,801 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:29,867 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:47:29,869 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:29,888 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:29,912 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:30,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:47:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:47:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:47:30,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:47:30,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:47:30,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,643 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:47:30,644 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:30,691 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:47:30,691 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:30,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,721 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:30,776 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:47:30,777 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:30,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:30,801 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:47:31,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:47:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:47:31,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:47:31,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:47:31,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:47:31,446 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:47:40,045 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:47:47,488 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:47:47,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1860962213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:47,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:47:47,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:47:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843338244] [2022-11-26 00:47:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:47,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:47:47,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:47,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:47:47,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-26 00:47:47,498 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-26 00:47:52,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:47:54,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:47:56,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:48:04,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:04,073 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-26 00:48:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:48:04,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 52 [2022-11-26 00:48:04,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:04,076 INFO L225 Difference]: With dead ends: 265 [2022-11-26 00:48:04,076 INFO L226 Difference]: Without dead ends: 140 [2022-11-26 00:48:04,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-26 00:48:04,078 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:04,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 466 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2022-11-26 00:48:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-26 00:48:04,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-26 00:48:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:48:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-26 00:48:04,107 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-26 00:48:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:04,107 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-26 00:48:04,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-26 00:48:04,108 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-26 00:48:04,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-26 00:48:04,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:04,110 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:04,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:48:04,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:48:04,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:48:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-26 00:48:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:04,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60330566] [2022-11-26 00:48:04,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:04,549 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:48:04,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443638075] [2022-11-26 00:48:04,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:04,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:48:04,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:48:04,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:48:04,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:48:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:05,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:48:05,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:48:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:48:05,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:48:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:48:06,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:06,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60330566] [2022-11-26 00:48:06,008 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:48:06,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443638075] [2022-11-26 00:48:06,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443638075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:48:06,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1797531849] [2022-11-26 00:48:06,013 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:48:06,013 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:48:06,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:48:06,014 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:48:06,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:48:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,133 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:06,175 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:48:06,176 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:06,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,194 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:06,203 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:48:06,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-26 00:48:06,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:48:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:48:06,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:48:06,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:48:06,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:48:06,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:06,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:06,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:48:06,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:48:06,990 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:48:06,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:48:07,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:48:07,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:48:07,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,446 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:07,491 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:48:07,491 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,510 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:48:07,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-26 00:48:07,532 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:48:07,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:48:07,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:48:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:48:08,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:48:08,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:48:08,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:08,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:48:08,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:48:08,420 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:48:08,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:48:08,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:48:08,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:48:08,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:48:08,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:48:08,927 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-26 00:48:09,048 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:48:15,573 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:23,421 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:33,437 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:45,483 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:58,005 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:58,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1797531849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:58,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:48:58,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:48:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411781281] [2022-11-26 00:48:58,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:58,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:48:58,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:48:58,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:48:58,617 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-26 00:49:01,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:03,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:05,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:07,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:09,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:11,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:13,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:15,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:17,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:24,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:25,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:49:27,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:49:31,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:49:32,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:49:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:32,748 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-26 00:49:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:49:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 65 [2022-11-26 00:49:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:32,750 INFO L225 Difference]: With dead ends: 267 [2022-11-26 00:49:32,750 INFO L226 Difference]: Without dead ends: 142 [2022-11-26 00:49:32,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.6s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:49:32,752 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:32,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 641 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 9 Unknown, 0 Unchecked, 34.1s Time] [2022-11-26 00:49:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-26 00:49:32,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-26 00:49:32,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-26 00:49:32,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-26 00:49:32,786 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-26 00:49:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:32,787 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-26 00:49:32,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-26 00:49:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-26 00:49:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:49:32,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:32,789 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:32,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:49:32,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-26 00:49:32,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-26 00:49:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:32,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345517398] [2022-11-26 00:49:32,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:33,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:33,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:33,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350265726] [2022-11-26 00:49:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:33,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:33,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:33,161 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:33,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71277ba0-9faf-4f68-a377-365877e8ec47/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:49:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:34,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:49:34,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:49:34,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:49:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:49:34,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345517398] [2022-11-26 00:49:34,667 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:49:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350265726] [2022-11-26 00:49:34,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350265726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:49:34,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [410491404] [2022-11-26 00:49:34,671 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:49:34,671 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:49:34,671 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:49:34,672 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:49:34,672 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:49:34,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:34,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:49:34,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:34,767 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:49:34,767 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:34,837 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:49:34,837 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:34,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:34,857 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:34,865 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:34,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:34,885 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:49:35,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:49:35,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:49:35,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:49:35,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:49:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:49:35,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:49:35,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:49:35,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:49:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:35,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:49:35,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:49:35,635 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:49:35,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-26 00:49:35,717 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:49:35,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:49:35,877 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,882 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,888 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:49:35,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:49:35,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-26 00:49:35,963 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,969 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:35,978 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:49:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:49:36,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:49:36,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:49:36,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:36,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:49:36,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:49:36,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:49:37,184 INFO L217 Elim1Store]: Index analysis took 543 ms [2022-11-26 00:49:40,009 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-26 00:49:40,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-26 00:49:40,590 INFO L217 Elim1Store]: Index analysis took 380 ms [2022-11-26 00:49:43,027 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-26 00:49:43,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-26 00:49:51,049 WARN L233 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:49:51,049 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-26 00:49:51,049 INFO L350 Elim1Store]: Elim1 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 1986 treesize of output 1481 [2022-11-26 00:50:10,509 WARN L233 SmtUtils]: Spent 19.30s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:50:10,510 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:50:10,510 INFO L350 Elim1Store]: Elim1 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 2005 treesize of output 1829 [2022-11-26 00:50:11,421 INFO L217 Elim1Store]: Index analysis took 675 ms [2022-11-26 00:50:30,184 WARN L233 SmtUtils]: Spent 18.36s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:50:30,185 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-26 00:50:30,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-26 00:50:31,989 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-26 00:50:31,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-26 00:50:32,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-26 00:50:32,599 INFO L217 Elim1Store]: Index analysis took 305 ms [2022-11-26 00:50:33,528 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:50:33,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-26 00:50:39,133 INFO L217 Elim1Store]: Index analysis took 623 ms