./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7 --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 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:06:53,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:06:53,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:06:53,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:06:53,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:06:53,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:06:53,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:06:53,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:06:53,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:06:53,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:06:53,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:06:53,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:06:53,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:06:53,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:06:53,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:06:53,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:06:53,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:06:53,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:06:53,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:06:53,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:06:53,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:06:53,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:06:53,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:06:53,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:06:53,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:06:53,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:06:53,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:06:53,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:06:53,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:06:53,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:06:53,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:06:53,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:06:53,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:06:53,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:06:53,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:06:53,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:06:53,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:06:53,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:06:53,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:06:53,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:06:53,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:06:53,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:06:53,454 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:06:53,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:06:53,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:06:53,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:06:53,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:06:53,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:06:53,456 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:06:53,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:06:53,456 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:06:53,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:06:53,457 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:06:53,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:06:53,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:06:53,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:06:53,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:06:53,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:06:53,458 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:06:53,458 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:06:53,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:06:53,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:06:53,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:06:53,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:06:53,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:06:53,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:06:53,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:06:53,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:06:53,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:06:53,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:06:53,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:06:53,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:06:53,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:06:53,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:06:53,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:06:53,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:06:53,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:06:53,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:06:53,463 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:06:53,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:06:53,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:06:53,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:06:53,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:06:53,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3db5e6ee1090a5741e563a010c3676d5357df7fec89fabe5a888b2d307357a0e [2021-11-25 18:06:53,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:06:53,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:06:53,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:06:53,741 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:06:53,742 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:06:53,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-11-25 18:06:53,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/data/9a564266f/8599a90b59dc4ed29330ad4b1e843c0a/FLAGf661abbe5 [2021-11-25 18:06:54,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:06:54,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i [2021-11-25 18:06:54,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/data/9a564266f/8599a90b59dc4ed29330ad4b1e843c0a/FLAGf661abbe5 [2021-11-25 18:06:54,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/data/9a564266f/8599a90b59dc4ed29330ad4b1e843c0a [2021-11-25 18:06:54,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:06:54,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:06:54,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:06:54,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:06:54,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:06:54,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:54" (1/1) ... [2021-11-25 18:06:54,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4038ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:54, skipping insertion in model container [2021-11-25 18:06:54,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:54" (1/1) ... [2021-11-25 18:06:54,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:06:54,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:06:55,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-11-25 18:06:55,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:06:55,524 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:06:55,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test10-2.i[33022,33035] [2021-11-25 18:06:55,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:06:55,762 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:06:55,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55 WrapperNode [2021-11-25 18:06:55,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:06:55,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:06:55,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:06:55,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:06:55,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:55,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:55,984 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-25 18:06:55,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:06:55,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:06:55,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:06:55,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:06:55,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:55,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:06:56,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:06:56,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:06:56,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:06:56,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (1/1) ... [2021-11-25 18:06:56,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:06:56,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:06:56,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:06:56,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:06:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-25 18:06:56,273 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-25 18:06:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:06:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:06:56,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:06:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:06:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:06:56,274 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:06:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:06:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:06:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:06:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:06:56,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:06:56,600 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:06:56,616 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:06:58,170 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:06:58,978 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:06:58,979 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-25 18:06:58,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:06:58 BoogieIcfgContainer [2021-11-25 18:06:58,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:06:58,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:06:58,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:06:58,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:06:58,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:06:54" (1/3) ... [2021-11-25 18:06:58,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98709fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:06:58, skipping insertion in model container [2021-11-25 18:06:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55" (2/3) ... [2021-11-25 18:06:58,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98709fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:06:58, skipping insertion in model container [2021-11-25 18:06:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:06:58" (3/3) ... [2021-11-25 18:06:58,995 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test10-2.i [2021-11-25 18:06:59,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:06:59,003 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:06:59,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:06:59,086 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:06:59,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:06:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 18:06:59,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:06:59,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:06:59,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:06:59,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:06:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:06:59,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-25 18:06:59,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:06:59,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294537022] [2021-11-25 18:06:59,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:06:59,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:06:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:06:59,350 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294537022] [2021-11-25 18:06:59,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294537022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:06:59,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:06:59,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:06:59,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619059777] [2021-11-25 18:06:59,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:06:59,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:06:59,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:06:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:06:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:06:59,426 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:00,619 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-25 18:07:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:07:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 18:07:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:00,635 INFO L225 Difference]: With dead ends: 529 [2021-11-25 18:07:00,635 INFO L226 Difference]: Without dead ends: 249 [2021-11-25 18:07:00,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:07:00,643 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:00,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 18:07:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-25 18:07:00,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-25 18:07:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 18:07:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-25 18:07:00,705 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-25 18:07:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:00,705 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-25 18:07:00,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-25 18:07:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 18:07:00,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:00,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:00,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:07:00,709 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:00,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:00,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-25 18:07:00,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:00,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217525552] [2021-11-25 18:07:00,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:00,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:00,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:00,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217525552] [2021-11-25 18:07:00,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217525552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:00,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:00,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:07:00,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354993926] [2021-11-25 18:07:00,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:00,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:00,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:00,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:00,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:00,808 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:03,150 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-25 18:07:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:03,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 18:07:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:03,153 INFO L225 Difference]: With dead ends: 425 [2021-11-25 18:07:03,153 INFO L226 Difference]: Without dead ends: 276 [2021-11-25 18:07:03,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:03,156 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:03,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 18:07:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-25 18:07:03,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-25 18:07:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 18:07:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-25 18:07:03,179 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-25 18:07:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:03,179 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-25 18:07:03,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:03,180 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-25 18:07:03,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 18:07:03,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:03,182 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:07:03,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:07:03,183 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:03,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:03,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-25 18:07:03,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:03,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129279891] [2021-11-25 18:07:03,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:03,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:03,300 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:03,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196606661] [2021-11-25 18:07:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:03,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:03,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:03,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:03,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:07:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:04,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:07:04,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:07:04,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:04,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:04,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129279891] [2021-11-25 18:07:04,325 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:07:04,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196606661] [2021-11-25 18:07:04,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196606661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:04,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:04,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:07:04,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456308595] [2021-11-25 18:07:04,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:04,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:07:04,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:04,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:07:04,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:04,328 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:06,705 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-25 18:07:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-25 18:07:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:06,708 INFO L225 Difference]: With dead ends: 614 [2021-11-25 18:07:06,708 INFO L226 Difference]: Without dead ends: 366 [2021-11-25 18:07:06,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:06,711 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:06,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 18:07:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-25 18:07:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-25 18:07:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 18:07:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-25 18:07:06,740 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-25 18:07:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:06,741 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-25 18:07:06,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:07:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-25 18:07:06,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 18:07:06,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:06,745 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:06,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:07:06,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:06,971 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-25 18:07:06,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:06,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411110233] [2021-11-25 18:07:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:06,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:07,078 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:07,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576058960] [2021-11-25 18:07:07,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:07,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:07,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:07,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:07,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:07:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:07,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 18:07:07,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:07,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:07:07,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:07,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:07:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:07:07,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:07,916 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411110233] [2021-11-25 18:07:07,918 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:07:07,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576058960] [2021-11-25 18:07:07,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576058960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:07,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:07,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:07:07,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187222950] [2021-11-25 18:07:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:07,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:07,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:07,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:07,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:07,922 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:07:10,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:07:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:11,483 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-25 18:07:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:11,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-25 18:07:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:11,486 INFO L225 Difference]: With dead ends: 674 [2021-11-25 18:07:11,486 INFO L226 Difference]: Without dead ends: 362 [2021-11-25 18:07:11,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:11,488 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:11,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 18:07:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-25 18:07:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-25 18:07:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 18:07:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-25 18:07:11,524 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-25 18:07:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:11,524 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-25 18:07:11,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:07:11,525 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-25 18:07:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-25 18:07:11,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:11,537 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:11,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:07:11,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:11,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:11,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:11,763 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-25 18:07:11,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:11,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157623386] [2021-11-25 18:07:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:11,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:11,936 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:11,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769573780] [2021-11-25 18:07:11,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:11,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:11,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:11,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:11,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:07:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:12,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:07:12,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:07:13,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:13,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:13,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157623386] [2021-11-25 18:07:13,134 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:07:13,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769573780] [2021-11-25 18:07:13,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769573780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:13,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:13,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:07:13,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862531024] [2021-11-25 18:07:13,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:13,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:07:13,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:07:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:13,137 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:07:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:15,092 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-25 18:07:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:07:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-25 18:07:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:15,097 INFO L225 Difference]: With dead ends: 820 [2021-11-25 18:07:15,097 INFO L226 Difference]: Without dead ends: 484 [2021-11-25 18:07:15,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:07:15,098 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:15,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 18:07:15,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-25 18:07:15,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-25 18:07:15,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 18:07:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-25 18:07:15,123 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-25 18:07:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:15,123 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-25 18:07:15,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:07:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-25 18:07:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 18:07:15,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:15,127 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:15,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:07:15,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:15,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:15,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-25 18:07:15,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:15,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380191775] [2021-11-25 18:07:15,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:15,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:15,453 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:15,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586765894] [2021-11-25 18:07:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:15,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:15,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:15,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:15,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:07:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:16,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:07:16,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 18:07:16,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:16,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:16,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380191775] [2021-11-25 18:07:16,410 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:07:16,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586765894] [2021-11-25 18:07:16,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586765894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:16,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:16,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:16,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779963088] [2021-11-25 18:07:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:16,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:16,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:16,413 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:07:17,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:17,895 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-25 18:07:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:17,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-25 18:07:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:17,899 INFO L225 Difference]: With dead ends: 719 [2021-11-25 18:07:17,899 INFO L226 Difference]: Without dead ends: 351 [2021-11-25 18:07:17,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:17,901 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:17,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 18:07:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-25 18:07:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-25 18:07:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 18:07:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-25 18:07:17,919 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-25 18:07:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:17,920 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-25 18:07:17,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 18:07:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-25 18:07:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 18:07:17,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:17,922 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:17,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:07:18,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 18:07:18,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:18,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-25 18:07:18,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:18,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623150952] [2021-11-25 18:07:18,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:18,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:18,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:18,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104744068] [2021-11-25 18:07:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:18,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:18,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:18,235 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:18,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:07:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:07:23,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:07:23,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:07:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 18:07:23,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:07:23,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:07:23,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623150952] [2021-11-25 18:07:23,724 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:07:23,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104744068] [2021-11-25 18:07:23,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104744068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:07:23,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:07:23,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:07:23,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880956190] [2021-11-25 18:07:23,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:07:23,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:07:23,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:07:23,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:07:23,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:07:23,727 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 18:07:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:07:26,376 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-25 18:07:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:07:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2021-11-25 18:07:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:07:26,380 INFO L225 Difference]: With dead ends: 684 [2021-11-25 18:07:26,380 INFO L226 Difference]: Without dead ends: 353 [2021-11-25 18:07:26,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:07:26,382 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:07:26,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 18:07:26,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-25 18:07:26,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-25 18:07:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-25 18:07:26,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-25 18:07:26,401 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-25 18:07:26,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:07:26,401 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-25 18:07:26,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 18:07:26,402 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-25 18:07:26,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 18:07:26,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:07:26,403 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:07:26,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:07:26,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 18:07:26,619 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:07:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:07:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-25 18:07:26,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:07:26,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504004942] [2021-11-25 18:07:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:26,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:07:26,742 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:07:26,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858140349] [2021-11-25 18:07:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:07:26,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:07:26,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:07:26,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:07:26,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5462233c-d09c-48f1-87b4-23cb13e449ec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:19:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:19:55,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 18:19:55,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:19:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 18:19:55,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:19:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 18:19:55,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:19:55,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504004942] [2021-11-25 18:19:55,818 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:19:55,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858140349] [2021-11-25 18:19:55,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858140349] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:19:55,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [29361036] [2021-11-25 18:19:55,844 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-25 18:19:55,846 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:19:55,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:19:55,857 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:19:55,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:19:56,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,218 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:19:56,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:19:56,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:19:56,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:19:56,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:19:56,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:19:56,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:19:56,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,350 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:19:56,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:19:56,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-25 18:19:56,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:19:56,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 30 [2021-11-25 18:19:56,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2021-11-25 18:19:56,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-25 18:19:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:19:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:56,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:19:57,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:57,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:57,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:19:57,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:57,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 18:19:57,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 18:19:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:19:57,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:19:57,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:19:57,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:19:57,373 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:19:57,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 18:19:57,403 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:19:57,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 18:19:57,433 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:19:57,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 18:19:57,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:19:57,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:19:57,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:19:57,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 18:19:57,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-25 18:19:57,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:19:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:19:57,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-25 18:19:57,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:19:57,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 18:20:03,534 WARN L227 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:20:03,535 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:20:03,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:20:03,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:11,171 WARN L227 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:20:11,172 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:20:11,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:20:11,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:11,628 INFO L244 Elim1Store]: Index analysis took 280 ms [2021-11-25 18:20:21,299 WARN L227 SmtUtils]: Spent 9.44s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:20:21,300 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 18:20:21,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 18:20:21,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:21,964 INFO L244 Elim1Store]: Index analysis took 223 ms [2021-11-25 18:20:21,975 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 18:20:21,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:20:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,335 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-11-25 18:20:22,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 57 [2021-11-25 18:20:22,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:22,946 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:20:22,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 18:20:23,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:23,392 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:20:23,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 18:20:23,888 INFO L244 Elim1Store]: Index analysis took 312 ms [2021-11-25 18:20:27,146 INFO L354 Elim1Store]: treesize reduction 12, result has 99.4 percent of original size [2021-11-25 18:20:27,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3564 treesize of output 4954 [2021-11-25 18:20:37,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,598 INFO L244 Elim1Store]: Index analysis took 150 ms [2021-11-25 18:20:37,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3555 treesize of output 3107 [2021-11-25 18:20:37,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:37,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:37,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:38,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:38,063 INFO L244 Elim1Store]: Index analysis took 174 ms [2021-11-25 18:20:38,316 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:20:38,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3555 treesize of output 3175 [2021-11-25 18:20:38,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:38,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:39,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:39,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:20:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:39,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:39,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:39,144 INFO L244 Elim1Store]: Index analysis took 187 ms [2021-11-25 18:20:39,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3555 treesize of output 3107 [2021-11-25 18:20:42,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:42,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-25 18:20:42,755 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:20:42,788 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:20:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:43,371 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:20:43,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 18:20:43,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:20:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:43,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-25 18:20:43,631 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:20:43,671 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:20:48,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:20:48,793 INFO L354 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2021-11-25 18:20:48,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 217259 treesize of output 205600 [2021-11-25 18:21:05,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:21:05,506 INFO L190 IndexEqualityManager]: detected not equals via solver