./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW --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 6fff6eb11b5ece9f2655331435003a1af77ee5ac869f244677acc531eb435a19 --- 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-4e7fbc6 [2022-11-23 14:34:39,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:34:39,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:34:40,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:34:40,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:34:40,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:34:40,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:34:40,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:34:40,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:34:40,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:34:40,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:34:40,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:34:40,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:34:40,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:34:40,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:34:40,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:34:40,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:34:40,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:34:40,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:34:40,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:34:40,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:34:40,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:34:40,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:34:40,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:34:40,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:34:40,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:34:40,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:34:40,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:34:40,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:34:40,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:34:40,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:34:40,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:34:40,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:34:40,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:34:40,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:34:40,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:34:40,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:34:40,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:34:40,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:34:40,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:34:40,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:34:40,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:34:40,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:34:40,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:34:40,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:34:40,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:34:40,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:34:40,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:34:40,100 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:34:40,101 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:34:40,101 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:34:40,101 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:34:40,101 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:34:40,102 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:34:40,102 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:34:40,102 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:34:40,102 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:34:40,103 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:34:40,103 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:34:40,103 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:34:40,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:34:40,104 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:34:40,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:34:40,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:34:40,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:34:40,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:34:40,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:34:40,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:34:40,106 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:34:40,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:34:40,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:34:40,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:34:40,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:34:40,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:34:40,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:40,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:34:40,107 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:34:40,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:34:40,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:34:40,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:34:40,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:34:40,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:34:40,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:34:40,109 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_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fff6eb11b5ece9f2655331435003a1af77ee5ac869f244677acc531eb435a19 [2022-11-23 14:34:40,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:34:40,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:34:40,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:34:40,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:34:40,445 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:34:40,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i [2022-11-23 14:34:43,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:34:43,886 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:34:43,891 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i [2022-11-23 14:34:43,910 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/data/e3a30e799/d1fbe49daf074ff2bdc0f204338ea226/FLAG5dd09f82f [2022-11-23 14:34:43,931 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/data/e3a30e799/d1fbe49daf074ff2bdc0f204338ea226 [2022-11-23 14:34:43,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:34:43,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:34:43,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:43,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:34:43,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:34:43,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:43" (1/1) ... [2022-11-23 14:34:43,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548dfd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:43, skipping insertion in model container [2022-11-23 14:34:43,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:43" (1/1) ... [2022-11-23 14:34:43,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:34:44,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:34:44,511 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_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i[33021,33034] [2022-11-23 14:34:44,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:44,703 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:34:44,735 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_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-2.i[33021,33034] [2022-11-23 14:34:44,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:34:44,869 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:34:44,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44 WrapperNode [2022-11-23 14:34:44,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:34:44,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:44,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:34:44,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:34:44,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:44,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,044 INFO L138 Inliner]: procedures = 177, calls = 400, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1300 [2022-11-23 14:34:45,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:34:45,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:34:45,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:34:45,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:34:45,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:34:45,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:34:45,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:34:45,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:34:45,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (1/1) ... [2022-11-23 14:34:45,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:34:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:34:45,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:34:45,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:34:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:34:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:34:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:34:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:34:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:34:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:34:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:34:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:34:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:34:45,566 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:34:45,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:34:47,349 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:34:47,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:34:47,843 INFO L300 CfgBuilder]: Removed 69 assume(true) statements. [2022-11-23 14:34:47,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:47 BoogieIcfgContainer [2022-11-23 14:34:47,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:34:47,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:34:47,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:34:47,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:34:47,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:43" (1/3) ... [2022-11-23 14:34:47,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8e1445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:47, skipping insertion in model container [2022-11-23 14:34:47,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:44" (2/3) ... [2022-11-23 14:34:47,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8e1445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:47, skipping insertion in model container [2022-11-23 14:34:47,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:47" (3/3) ... [2022-11-23 14:34:47,854 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-2.i [2022-11-23 14:34:47,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:34:47,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:34:47,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:34:47,929 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;@56bec1f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:34:47,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:34:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 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) [2022-11-23 14:34:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:34:47,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:47,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:47,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:34:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:47,949 INFO L85 PathProgramCache]: Analyzing trace with hash 190255821, now seen corresponding path program 1 times [2022-11-23 14:34:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:47,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018266191] [2022-11-23 14:34:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:48,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:48,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018266191] [2022-11-23 14:34:48,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018266191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:48,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:48,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:34:48,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541491057] [2022-11-23 14:34:48,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:48,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:34:48,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:48,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:34:48,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:34:48,191 INFO L87 Difference]: Start difference. First operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 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) [2022-11-23 14:34:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:49,422 INFO L93 Difference]: Finished difference Result 375 states and 678 transitions. [2022-11-23 14:34:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:34:49,431 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 [2022-11-23 14:34:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:49,441 INFO L225 Difference]: With dead ends: 375 [2022-11-23 14:34:49,441 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 14:34:49,444 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 [2022-11-23 14:34:49,447 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:49,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 332 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 14:34:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 14:34:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 14:34:49,496 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) [2022-11-23 14:34:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 14:34:49,508 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 14:34:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:49,509 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 14:34:49,509 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) [2022-11-23 14:34:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 14:34:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 14:34:49,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:49,512 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] [2022-11-23 14:34:49,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:34:49,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:34:49,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:49,513 INFO L85 PathProgramCache]: Analyzing trace with hash -910103328, now seen corresponding path program 1 times [2022-11-23 14:34:49,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:49,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743074562] [2022-11-23 14:34:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:49,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:49,806 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:34:49,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469523790] [2022-11-23 14:34:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:34:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:34:49,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:34:49,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:34:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:51,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:34:51,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:34:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:51,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:34:51,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:34:51,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:51,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743074562] [2022-11-23 14:34:51,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:34:51,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469523790] [2022-11-23 14:34:51,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469523790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:34:51,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1810072628] [2022-11-23 14:34:51,624 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 14:34:51,624 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:34:51,631 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:34:51,638 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:34:51,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:34:51,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:51,807 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 [2022-11-23 14:34:51,846 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:34:51,847 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 [2022-11-23 14:34:51,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:51,864 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 [2022-11-23 14:34:51,871 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 [2022-11-23 14:34:51,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:51,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:34:51,885 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 [2022-11-23 14:34:52,309 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 [2022-11-23 14:34:52,326 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 [2022-11-23 14:34:52,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,371 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 [2022-11-23 14:34:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,422 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 [2022-11-23 14:34:52,500 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:34:52,501 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 [2022-11-23 14:34:52,542 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:34:52,543 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 [2022-11-23 14:34:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,560 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 [2022-11-23 14:34:52,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:34:52,573 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 [2022-11-23 14:34:52,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:52,589 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 [2022-11-23 14:34:53,044 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 [2022-11-23 14:34:53,064 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 [2022-11-23 14:34:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,121 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 [2022-11-23 14:34:53,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:34:53,170 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 [2022-11-23 14:34:53,214 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:35:01,474 WARN L233 SmtUtils]: Spent 5.41s 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) [2022-11-23 14:35:08,826 WARN L233 SmtUtils]: Spent 5.23s 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) [2022-11-23 14:35:08,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1810072628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:35:08,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:35:08,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:35:08,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963521647] [2022-11-23 14:35:08,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:35:08,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:35:08,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:35:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:35:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 14:35:08,838 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) [2022-11-23 14:35:11,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:35:13,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:35:15,877 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] [2022-11-23 14:35:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:35:18,040 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 14:35:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:35:18,041 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 [2022-11-23 14:35:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:35:18,043 INFO L225 Difference]: With dead ends: 265 [2022-11-23 14:35:18,043 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 14:35:18,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 14:35:18,045 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 14 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:35:18,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 265 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 97 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-11-23 14:35:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 14:35:18,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 14:35:18,070 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) [2022-11-23 14:35:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 14:35:18,072 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 14:35:18,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:35:18,073 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 14:35:18,073 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) [2022-11-23 14:35:18,074 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 14:35:18,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 14:35:18,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:35:18,076 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] [2022-11-23 14:35:18,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:35:18,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:35:18,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:35:18,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:35:18,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1562765067, now seen corresponding path program 1 times [2022-11-23 14:35:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:35:18,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799761639] [2022-11-23 14:35:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:35:18,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:35:18,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578250405] [2022-11-23 14:35:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:18,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:35:18,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:35:18,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:35:18,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:35:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:35:19,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:35:19,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:35:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:35:19,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:35:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:35:19,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:35:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799761639] [2022-11-23 14:35:19,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:35:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578250405] [2022-11-23 14:35:19,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578250405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:35:19,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1120657951] [2022-11-23 14:35:19,978 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:35:19,979 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:35:19,979 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:35:19,979 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:35:19,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:35:20,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,074 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 [2022-11-23 14:35:20,111 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:35:20,112 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 [2022-11-23 14:35:20,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:35:20,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,144 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:35:20,145 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 [2022-11-23 14:35:20,195 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:35:20,196 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 [2022-11-23 14:35:20,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,231 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 [2022-11-23 14:35:20,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,548 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 [2022-11-23 14:35:20,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,593 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 [2022-11-23 14:35:20,689 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 [2022-11-23 14:35:20,710 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 [2022-11-23 14:35:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,797 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 [2022-11-23 14:35:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:20,866 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 [2022-11-23 14:35:20,899 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 [2022-11-23 14:35:20,913 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 [2022-11-23 14:35:20,966 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 [2022-11-23 14:35:21,035 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:35:21,036 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 [2022-11-23 14:35:21,117 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:35:21,117 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 [2022-11-23 14:35:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,177 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 [2022-11-23 14:35:21,218 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 [2022-11-23 14:35:21,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:35:21,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,589 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:35:21,589 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 [2022-11-23 14:35:21,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,606 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 [2022-11-23 14:35:21,654 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:35:21,656 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 [2022-11-23 14:35:21,669 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 [2022-11-23 14:35:21,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:21,686 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 [2022-11-23 14:35:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,057 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 [2022-11-23 14:35:22,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,101 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 [2022-11-23 14:35:22,140 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 [2022-11-23 14:35:22,165 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 [2022-11-23 14:35:22,219 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 [2022-11-23 14:35:22,232 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 [2022-11-23 14:35:22,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,296 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 [2022-11-23 14:35:22,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,350 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 [2022-11-23 14:35:22,479 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 [2022-11-23 14:35:22,552 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:35:22,552 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 [2022-11-23 14:35:22,570 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 [2022-11-23 14:35:22,594 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 [2022-11-23 14:35:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:35:22,644 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 [2022-11-23 14:35:23,025 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 14:35:23,127 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:35:29,089 WARN L233 SmtUtils]: Spent 5.03s 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) [2022-11-23 14:35:37,339 WARN L233 SmtUtils]: Spent 6.15s 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) [2022-11-23 14:35:47,852 WARN L233 SmtUtils]: Spent 5.98s 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) [2022-11-23 14:36:00,362 WARN L233 SmtUtils]: Spent 6.31s 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) [2022-11-23 14:36:12,662 WARN L233 SmtUtils]: Spent 6.09s 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) [2022-11-23 14:36:13,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1120657951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:36:13,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:36:13,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:36:13,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360023875] [2022-11-23 14:36:13,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:36:13,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:36:13,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:36:13,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:36:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:36:13,423 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) [2022-11-23 14:36:15,934 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] [2022-11-23 14:36:18,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:20,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:22,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:24,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:26,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:28,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:36:33,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:36:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:36:35,798 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 14:36:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:36:35,799 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 [2022-11-23 14:36:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:36:35,801 INFO L225 Difference]: With dead ends: 267 [2022-11-23 14:36:35,801 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 14:36:35,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.3s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:36:35,803 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 14 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:36:35,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 452 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 244 Invalid, 6 Unknown, 0 Unchecked, 22.3s Time] [2022-11-23 14:36:35,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 14:36:35,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 14:36:35,844 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) [2022-11-23 14:36:35,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 14:36:35,845 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 14:36:35,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:36:35,846 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 14:36:35,846 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) [2022-11-23 14:36:35,846 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 14:36:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 14:36:35,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:36:35,853 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] [2022-11-23 14:36:35,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:36:36,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:36:36,059 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:36:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:36:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1076213087, now seen corresponding path program 1 times [2022-11-23 14:36:36,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:36:36,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739791380] [2022-11-23 14:36:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:36:36,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:36:36,224 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:36:36,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144281702] [2022-11-23 14:36:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:36:36,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:36:36,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:36:36,226 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:36:36,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0fdbf0b-499d-4d07-a5ff-17372a5a8a3c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:36:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:36:37,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:36:37,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:36:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:36:37,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:36:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:36:37,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:36:37,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739791380] [2022-11-23 14:36:37,728 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:36:37,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144281702] [2022-11-23 14:36:37,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144281702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:36:37,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1209250728] [2022-11-23 14:36:37,732 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:36:37,732 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:36:37,732 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:36:37,733 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:36:37,733 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:36:37,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:37,825 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 [2022-11-23 14:36:37,864 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:36:37,865 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 [2022-11-23 14:36:37,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:37,881 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 [2022-11-23 14:36:37,889 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 [2022-11-23 14:36:37,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:37,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:36:37,901 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 [2022-11-23 14:36:38,190 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 [2022-11-23 14:36:38,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,230 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 [2022-11-23 14:36:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,269 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 [2022-11-23 14:36:38,299 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 [2022-11-23 14:36:38,328 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 [2022-11-23 14:36:38,338 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 [2022-11-23 14:36:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,392 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 [2022-11-23 14:36:38,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,438 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 [2022-11-23 14:36:38,493 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 [2022-11-23 14:36:38,569 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:36:38,569 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 [2022-11-23 14:36:38,584 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 [2022-11-23 14:36:38,608 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 [2022-11-23 14:36:38,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,656 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 [2022-11-23 14:36:38,807 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 [2022-11-23 14:36:38,812 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 [2022-11-23 14:36:38,818 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 [2022-11-23 14:36:38,835 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 [2022-11-23 14:36:38,842 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 [2022-11-23 14:36:38,849 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 [2022-11-23 14:36:38,920 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 [2022-11-23 14:36:38,925 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 [2022-11-23 14:36:38,931 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 [2022-11-23 14:36:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:38,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,010 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 [2022-11-23 14:36:39,034 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 [2022-11-23 14:36:39,054 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 [2022-11-23 14:36:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:36:39,239 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 [2022-11-23 14:36:39,258 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 [2022-11-23 14:36:39,276 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 [2022-11-23 14:36:40,435 INFO L217 Elim1Store]: Index analysis took 870 ms [2022-11-23 14:36:42,582 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 14:36:42,583 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 [2022-11-23 14:36:43,428 INFO L217 Elim1Store]: Index analysis took 484 ms [2022-11-23 14:36:47,041 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 14:36:47,041 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 [2022-11-23 14:36:54,108 WARN L233 SmtUtils]: Spent 7.01s 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) [2022-11-23 14:36:54,109 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 14:36:54,109 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 [2022-11-23 14:37:09,434 WARN L233 SmtUtils]: Spent 15.20s 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) [2022-11-23 14:37:09,434 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:37:09,435 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 1824 [2022-11-23 14:37:10,255 INFO L217 Elim1Store]: Index analysis took 601 ms [2022-11-23 14:37:29,722 WARN L233 SmtUtils]: Spent 19.02s 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) [2022-11-23 14:37:29,723 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 14:37:29,724 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 [2022-11-23 14:37:31,867 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 14:37:31,867 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 [2022-11-23 14:37:31,936 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 [2022-11-23 14:37:32,411 INFO L217 Elim1Store]: Index analysis took 218 ms [2022-11-23 14:37:33,488 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:37:33,489 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 [2022-11-23 14:37:40,062 INFO L217 Elim1Store]: Index analysis took 620 ms