./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/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_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/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_c885dd85-c7ef-44e9-837e-c6fbed0cc067/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 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 --- 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 16:12:15,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:12:15,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:12:16,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:12:16,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:12:16,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:12:16,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:12:16,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:12:16,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:12:16,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:12:16,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:12:16,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:12:16,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:12:16,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:12:16,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:12:16,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:12:16,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:12:16,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:12:16,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:12:16,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:12:16,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:12:16,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:12:16,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:12:16,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:12:16,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:12:16,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:12:16,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:12:16,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:12:16,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:12:16,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:12:16,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:12:16,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:12:16,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:12:16,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:12:16,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:12:16,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:12:16,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:12:16,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:12:16,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:12:16,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:12:16,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:12:16,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 16:12:16,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:12:16,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:12:16,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:12:16,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:12:16,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:12:16,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:12:16,100 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:12:16,101 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:12:16,101 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:12:16,101 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:12:16,102 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:12:16,103 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:12:16,103 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:12:16,103 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:12:16,103 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:12:16,104 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:12:16,104 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:12:16,104 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:12:16,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:12:16,106 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:12:16,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:12:16,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:12:16,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:12:16,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:12:16,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:12:16,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:12:16,108 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:12:16,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:12:16,109 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:12:16,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:12:16,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:12:16,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:12:16,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:12:16,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:12:16,110 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:12:16,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:12:16,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:12:16,111 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:12:16,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:12:16,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:12:16,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:12:16,113 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_c885dd85-c7ef-44e9-837e-c6fbed0cc067/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 [2022-11-23 16:12:16,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:12:16,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:12:16,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:12:16,441 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:12:16,441 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:12:16,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-11-23 16:12:19,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:12:19,696 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:12:19,696 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-11-23 16:12:19,711 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/data/995e8f266/fbd64440b1344b7b87eb42fa4c869989/FLAGe41bc87c5 [2022-11-23 16:12:19,726 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/data/995e8f266/fbd64440b1344b7b87eb42fa4c869989 [2022-11-23 16:12:19,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:12:19,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:12:19,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:12:19,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:12:19,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:12:19,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:12:19" (1/1) ... [2022-11-23 16:12:19,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ed614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:19, skipping insertion in model container [2022-11-23 16:12:19,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:12:19" (1/1) ... [2022-11-23 16:12:19,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:12:19,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:12:20,296 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_c885dd85-c7ef-44e9-837e-c6fbed0cc067/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-11-23 16:12:20,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:12:20,407 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:12:20,461 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_c885dd85-c7ef-44e9-837e-c6fbed0cc067/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-11-23 16:12:20,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:12:20,605 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:12:20,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20 WrapperNode [2022-11-23 16:12:20,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:12:20,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:12:20,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:12:20,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:12:20,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,770 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-23 16:12:20,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:12:20,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:12:20,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:12:20,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:12:20,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:12:20,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:12:20,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:12:20,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:12:20,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (1/1) ... [2022-11-23 16:12:20,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:12:20,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:12:20,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:12:20,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:12:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:12:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 16:12:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 16:12:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:12:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 16:12:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 16:12:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:12:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:12:21,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:12:21,231 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:12:21,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:12:23,417 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:12:23,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:12:23,882 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-23 16:12:23,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:12:23 BoogieIcfgContainer [2022-11-23 16:12:23,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:12:23,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:12:23,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:12:23,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:12:23,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:12:19" (1/3) ... [2022-11-23 16:12:23,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f744efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:12:23, skipping insertion in model container [2022-11-23 16:12:23,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:12:20" (2/3) ... [2022-11-23 16:12:23,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f744efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:12:23, skipping insertion in model container [2022-11-23 16:12:23,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:12:23" (3/3) ... [2022-11-23 16:12:23,894 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-1.i [2022-11-23 16:12:23,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:12:23,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 16:12:23,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:12:23,968 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;@62351b46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:12:23,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 16:12:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 16:12:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 16:12:23,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:12:23,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:12:23,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:12:23,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:12:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-23 16:12:23,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:12:23,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861667520] [2022-11-23 16:12:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:12:23,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:12:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:12:24,204 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 16:12:24,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:12:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861667520] [2022-11-23 16:12:24,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861667520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:12:24,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:12:24,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:12:24,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477991269] [2022-11-23 16:12:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:12:24,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:12:24,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:12:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:12:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:12:24,248 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:12:26,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:12:29,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:12:30,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:12:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:12:30,793 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-23 16:12:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:12:30,812 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 16:12:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:12:30,822 INFO L225 Difference]: With dead ends: 347 [2022-11-23 16:12:30,823 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 16:12:30,825 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 16:12:30,829 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:12:30,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-23 16:12:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 16:12:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 16:12:30,886 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 16:12:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 16:12:30,890 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 16:12:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:12:30,891 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 16:12:30,891 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 16:12:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 16:12:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 16:12:30,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:12:30,895 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 16:12:30,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:12:30,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:12:30,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:12:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-23 16:12:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:12:30,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139763918] [2022-11-23 16:12:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:12:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:12:31,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:12:31,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018336641] [2022-11-23 16:12:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:12:31,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:12:31,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:12:31,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:12:31,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:12:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:12:32,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 16:12:32,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:12:32,871 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 16:12:32,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:12:32,978 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 16:12:32,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:12:32,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139763918] [2022-11-23 16:12:32,979 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:12:32,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018336641] [2022-11-23 16:12:32,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018336641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:12:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [970406804] [2022-11-23 16:12:33,002 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 16:12:33,002 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:12:33,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:12:33,012 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:12:33,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:12:33,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,169 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 16:12:33,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:12:33,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,198 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:12:33,199 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 16:12:33,252 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:12:33,253 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 16:12:33,276 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 16:12:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,297 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 16:12:33,707 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 16:12:33,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,771 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 16:12:33,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,821 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 16:12:33,861 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 16:12:33,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:12:33,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,917 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:12:33,918 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 16:12:33,966 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 16:12:33,967 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 16:12:33,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:33,992 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 16:12:34,061 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:12:34,061 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 16:12:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,081 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 16:12:34,520 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 16:12:34,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,598 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 16:12:34,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:34,646 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 16:12:34,685 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 16:12:34,721 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:12:42,689 WARN L233 SmtUtils]: Spent 5.08s 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 16:12:50,129 WARN L233 SmtUtils]: Spent 5.26s 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 16:12:50,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [970406804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:12:50,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 16:12:50,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 16:12:50,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347972275] [2022-11-23 16:12:50,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:12:50,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 16:12:50,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:12:50,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 16:12:50,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 16:12:50,140 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 16:12:53,203 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 16:12:55,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:12:57,366 WARN L539 Checker$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 16:13:01,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:13:03,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:13:05,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:13:06,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:13:06,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:13:06,619 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 16:13:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 16:13:06,620 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 16:13:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:13:06,622 INFO L225 Difference]: With dead ends: 265 [2022-11-23 16:13:06,622 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 16:13:06,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 16:13:06,624 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 7 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:13:06,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 466 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 213 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2022-11-23 16:13:06,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 16:13:06,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 16:13:06,644 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 16:13:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 16:13:06,646 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 16:13:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:13:06,646 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 16:13:06,647 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 16:13:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 16:13:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 16:13:06,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:13:06,649 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 16:13:06,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 16:13:06,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:13:06,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:13:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:13:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-23 16:13:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:13:06,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408367735] [2022-11-23 16:13:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:13:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:13:07,027 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:13:07,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943505787] [2022-11-23 16:13:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:13:07,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:13:07,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:13:07,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:13:07,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:13:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:13:08,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 16:13:08,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:13:08,281 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 16:13:08,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:13:08,398 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 16:13:08,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:13:08,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408367735] [2022-11-23 16:13:08,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:13:08,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943505787] [2022-11-23 16:13:08,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943505787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:13:08,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [967469273] [2022-11-23 16:13:08,404 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 16:13:08,404 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:13:08,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:13:08,405 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:13:08,405 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:13:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,502 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 16:13:08,542 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:13:08,542 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 16:13:08,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,561 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 16:13:08,568 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 16:13:08,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:08,582 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 16:13:08,937 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 16:13:08,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:08,984 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 16:13:09,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,033 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 16:13:09,072 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 16:13:09,105 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 16:13:09,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,176 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 16:13:09,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,232 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 16:13:09,266 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 16:13:09,318 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 16:13:09,389 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:13:09,389 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 16:13:09,407 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 16:13:09,431 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 16:13:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,498 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 16:13:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,781 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 16:13:09,824 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:13:09,824 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 16:13:09,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,841 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 16:13:09,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:09,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:13:09,852 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 16:13:09,862 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 16:13:10,258 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 16:13:10,281 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 16:13:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,327 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 16:13:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,370 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 16:13:10,428 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 16:13:10,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,487 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 16:13:10,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,539 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 16:13:10,568 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 16:13:10,625 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 16:13:10,696 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:13:10,697 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 16:13:10,712 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 16:13:10,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:10,764 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 16:13:10,802 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 16:13:11,166 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 16:13:11,289 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:13:17,386 WARN L233 SmtUtils]: Spent 5.17s 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 16:13:24,827 WARN L233 SmtUtils]: Spent 5.34s 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 16:13:35,306 WARN L233 SmtUtils]: Spent 6.34s 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 16:13:48,082 WARN L233 SmtUtils]: Spent 6.63s 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 16:14:00,238 WARN L233 SmtUtils]: Spent 5.97s 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 16:14:00,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [967469273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:14:00,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 16:14:00,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 16:14:00,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116600352] [2022-11-23 16:14:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:14:00,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 16:14:00,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:14:00,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 16:14:00,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 16:14:00,821 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 16:14:03,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:05,613 WARN L539 Checker$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 16:14:07,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:09,850 WARN L539 Checker$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 16:14:11,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:13,880 WARN L539 Checker$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 16:14:16,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:18,836 WARN L539 Checker$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 16:14:20,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:27,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 16:14:28,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:14:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:14:30,888 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 16:14:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 16:14:30,888 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 16:14:30,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:14:30,890 INFO L225 Difference]: With dead ends: 267 [2022-11-23 16:14:30,890 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 16:14:30,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.5s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 16:14:30,891 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 6 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:14:30,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 641 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 391 Invalid, 9 Unknown, 0 Unchecked, 30.0s Time] [2022-11-23 16:14:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 16:14:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 16:14:30,926 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 16:14:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 16:14:30,927 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 16:14:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:14:30,928 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 16:14:30,928 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 16:14:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 16:14:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 16:14:30,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:14:30,930 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 16:14:30,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:14:31,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:14:31,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:14:31,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:14:31,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-23 16:14:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:14:31,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869474894] [2022-11-23 16:14:31,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:14:31,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:14:31,282 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:14:31,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038463256] [2022-11-23 16:14:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:14:31,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:14:31,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:14:31,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:14:31,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c885dd85-c7ef-44e9-837e-c6fbed0cc067/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:14:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:14:32,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 16:14:32,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:14:32,650 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 16:14:32,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:14:32,761 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 16:14:32,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:14:32,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869474894] [2022-11-23 16:14:32,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:14:32,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038463256] [2022-11-23 16:14:32,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038463256] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:14:32,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1894749958] [2022-11-23 16:14:32,765 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 16:14:32,766 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:14:32,766 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:14:32,766 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:14:32,767 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:14:32,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:32,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:14:32,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:32,903 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:14:32,904 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 16:14:32,950 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:14:32,951 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 16:14:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:32,967 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 16:14:32,976 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 16:14:32,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:32,991 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 16:14:33,256 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 16:14:33,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,301 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 16:14:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,344 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 16:14:33,413 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 16:14:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,483 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 16:14:33,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,528 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 16:14:33,552 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 16:14:33,564 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 16:14:33,603 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 16:14:33,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:33,642 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 16:14:33,678 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 16:14:33,745 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 16:14:33,746 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 16:14:33,825 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:14:33,825 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 16:14:34,001 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 16:14:34,006 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 16:14:34,011 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 16:14:34,029 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 16:14:34,036 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 16:14:34,044 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 16:14:34,067 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 16:14:34,072 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 16:14:34,079 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 16:14:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,172 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 16:14:34,200 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 16:14:34,218 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 16:14:34,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:14:34,393 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 16:14:34,411 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 16:14:34,427 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 16:14:35,222 INFO L217 Elim1Store]: Index analysis took 431 ms [2022-11-23 16:14:37,438 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 16:14:37,439 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 16:14:40,559 INFO L217 Elim1Store]: Index analysis took 2623 ms [2022-11-23 16:14:42,288 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 16:14:42,289 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 16:14:49,592 WARN L233 SmtUtils]: Spent 7.25s 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 16:14:49,593 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 16:14:49,593 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 16:15:06,371 WARN L233 SmtUtils]: Spent 16.64s 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 16:15:06,372 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 16:15:06,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-23 16:15:07,179 INFO L217 Elim1Store]: Index analysis took 576 ms [2022-11-23 16:15:22,969 WARN L233 SmtUtils]: Spent 15.42s 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 16:15:22,970 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 16:15:22,971 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 16:15:24,204 INFO L217 Elim1Store]: Index analysis took 138 ms [2022-11-23 16:15:24,587 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 16:15:24,588 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 16:15:24,665 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 16:15:25,185 INFO L217 Elim1Store]: Index analysis took 399 ms [2022-11-23 16:15:25,700 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 16:15:25,700 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 16:15:30,941 INFO L217 Elim1Store]: Index analysis took 538 ms