./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:13:57,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:13:57,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:13:57,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:13:57,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:13:57,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:13:57,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:13:57,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:13:57,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:13:57,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:13:57,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:13:57,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:13:57,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:13:57,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:13:57,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:13:57,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:13:57,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:13:57,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:13:57,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:13:57,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:13:57,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:13:57,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:13:57,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:13:57,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:13:57,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:13:57,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:13:57,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:13:57,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:13:57,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:13:57,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:13:57,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:13:57,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:13:57,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:13:57,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:13:57,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:13:57,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:13:57,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:13:57,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:13:57,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:13:57,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:13:57,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:13:57,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:13:57,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:13:57,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:13:57,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:13:57,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:13:57,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:13:57,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:13:57,188 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:13:57,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:13:57,188 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:13:57,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:13:57,189 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:13:57,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:13:57,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:13:57,190 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:13:57,190 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:13:57,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:13:57,191 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:13:57,191 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:13:57,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:13:57,192 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:13:57,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:13:57,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:13:57,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:13:57,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:13:57,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:13:57,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:13:57,195 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:13:57,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:13:57,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:13:57,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:13:57,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:13:57,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:13:57,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:13:57,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:13:57,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:13:57,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:13:57,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:13:57,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:13:57,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:13:57,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:13:57,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:13:57,199 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_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98addbea2d7583a98dfe535f8a62b1da98b67168a60a4eb76b7c658a539d3a89 [2021-11-20 23:13:57,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:13:57,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:13:57,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:13:57,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:13:57,485 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:13:57,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2021-11-20 23:13:57,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/data/95c06237f/38518b76fd58433b91376482e33779fe/FLAGf2cd51698 [2021-11-20 23:13:58,276 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:13:58,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i [2021-11-20 23:13:58,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/data/95c06237f/38518b76fd58433b91376482e33779fe/FLAGf2cd51698 [2021-11-20 23:13:58,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/data/95c06237f/38518b76fd58433b91376482e33779fe [2021-11-20 23:13:58,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:13:58,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:13:58,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:13:58,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:13:58,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:13:58,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:58" (1/1) ... [2021-11-20 23:13:58,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575bbefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:58, skipping insertion in model container [2021-11-20 23:13:58,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:58" (1/1) ... [2021-11-20 23:13:58,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:13:58,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:13:59,069 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_d09ebe64-d4dd-448e-879c-80d3f9750e84/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i[33021,33034] [2021-11-20 23:13:59,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:13:59,246 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:13:59,300 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_d09ebe64-d4dd-448e-879c-80d3f9750e84/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-2.i[33021,33034] [2021-11-20 23:13:59,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:13:59,445 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:13:59,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59 WrapperNode [2021-11-20 23:13:59,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:13:59,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:13:59,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:13:59,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:13:59,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,563 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 776 [2021-11-20 23:13:59,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:13:59,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:13:59,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:13:59,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:13:59,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:13:59,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:13:59,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:13:59,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:13:59,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (1/1) ... [2021-11-20 23:13:59,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:13:59,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:13:59,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:13:59,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:13:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:13:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:13:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:13:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:13:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:13:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:13:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:13:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:13:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:13:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:13:59,999 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:14:00,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:14:00,909 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:14:01,256 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:14:01,257 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-20 23:14:01,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:01 BoogieIcfgContainer [2021-11-20 23:14:01,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:14:01,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:14:01,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:14:01,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:14:01,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:13:58" (1/3) ... [2021-11-20 23:14:01,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613ac90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:01, skipping insertion in model container [2021-11-20 23:14:01,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:59" (2/3) ... [2021-11-20 23:14:01,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613ac90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:01, skipping insertion in model container [2021-11-20 23:14:01,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:01" (3/3) ... [2021-11-20 23:14:01,271 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-2.i [2021-11-20 23:14:01,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:14:01,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:14:01,343 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:14:01,360 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:14:01,364 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:14:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:14:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:14:01,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:01,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:01,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:01,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1739953547, now seen corresponding path program 1 times [2021-11-20 23:14:01,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:01,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832964992] [2021-11-20 23:14:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:01,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:14:01,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:01,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832964992] [2021-11-20 23:14:01,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832964992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:01,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:14:01,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:14:01,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449458722] [2021-11-20 23:14:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:01,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:14:01,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:01,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:14:01,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:01,662 INFO L87 Difference]: Start difference. First operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:14:03,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:14:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:03,282 INFO L93 Difference]: Finished difference Result 237 states and 426 transitions. [2021-11-20 23:14:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:14:03,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 23:14:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:03,317 INFO L225 Difference]: With dead ends: 237 [2021-11-20 23:14:03,317 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:14:03,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:14:03,326 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:03,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:14:03,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:14:03,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-20 23:14:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:14:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-20 23:14:03,379 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-20 23:14:03,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:03,379 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-20 23:14:03,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:14:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-20 23:14:03,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 23:14:03,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:03,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:03,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:14:03,383 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:03,384 INFO L85 PathProgramCache]: Analyzing trace with hash -976039302, now seen corresponding path program 1 times [2021-11-20 23:14:03,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:03,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241294520] [2021-11-20 23:14:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:03,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:03,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:03,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864553410] [2021-11-20 23:14:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:03,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:03,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:03,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:03,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:14:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:03,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:14:03,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:14:03,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:14:03,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:03,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241294520] [2021-11-20 23:14:03,998 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:03,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864553410] [2021-11-20 23:14:03,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864553410] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:14:03,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1144242804] [2021-11-20 23:14:04,034 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-20 23:14:04,034 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:04,046 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:04,052 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:04,054 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:14:04,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:04,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:04,246 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:14:04,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-20 23:14:04,346 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:14:04,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-20 23:14:04,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:04,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:04,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:04,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:04,474 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:14:04,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:14:05,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:14:05,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:14:05,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:05,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:06,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:06,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:14:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:06,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:14:06,910 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:14:07,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1144242804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:07,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:14:07,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-20 23:14:07,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602917393] [2021-11-20 23:14:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:07,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:14:07,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:14:07,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:14:07,437 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:14:09,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:09,370 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-20 23:14:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:14:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-20 23:14:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:09,380 INFO L225 Difference]: With dead ends: 173 [2021-11-20 23:14:09,381 INFO L226 Difference]: Without dead ends: 94 [2021-11-20 23:14:09,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:14:09,384 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:09,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 333 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:14:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-20 23:14:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-20 23:14:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:14:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-20 23:14:09,404 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-20 23:14:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:09,404 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-20 23:14:09,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:14:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-20 23:14:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:14:09,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:09,407 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:09,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:14:09,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:09,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash 720340601, now seen corresponding path program 1 times [2021-11-20 23:14:09,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:09,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433314639] [2021-11-20 23:14:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:09,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:09,642 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:09,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116080415] [2021-11-20 23:14:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:09,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:09,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:09,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:14:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:09,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:14:09,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:14:09,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:14:10,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:10,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433314639] [2021-11-20 23:14:10,071 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:10,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116080415] [2021-11-20 23:14:10,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116080415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:14:10,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1976547867] [2021-11-20 23:14:10,076 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:14:10,076 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:10,077 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:10,077 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:10,077 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:14:10,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:10,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:10,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:10,176 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:14:10,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-20 23:14:10,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:10,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:10,233 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:14:10,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-20 23:14:10,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:10,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:10,308 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:14:10,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:14:11,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:11,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:14:11,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:14:11,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-20 23:14:11,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,722 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:14:11,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:14:11,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:14:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,861 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:14:11,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 125 [2021-11-20 23:14:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:11,926 INFO L354 Elim1Store]: treesize reduction 176, result has 10.7 percent of original size [2021-11-20 23:14:11,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 119 [2021-11-20 23:14:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:12,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:14:14,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:14:14,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:14:14,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-20 23:14:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,430 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:14:14,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:14:14,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:14:14,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,568 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:14:14,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:14:14,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,629 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:14:14,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-20 23:14:14,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:14,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:14:14,885 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-20 23:14:15,138 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:14:16,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1976547867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:14:16,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:14:16,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-20 23:14:16,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440499418] [2021-11-20 23:14:16,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:14:16,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:14:16,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:14:16,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:14:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:14:16,117 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:14:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:14:17,991 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-20 23:14:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 23:14:17,998 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 23:14:17,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:14:18,000 INFO L225 Difference]: With dead ends: 175 [2021-11-20 23:14:18,000 INFO L226 Difference]: Without dead ends: 96 [2021-11-20 23:14:18,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:14:18,002 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 12 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:14:18,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 444 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 110 Unchecked, 1.9s Time] [2021-11-20 23:14:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-20 23:14:18,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-20 23:14:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:14:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-20 23:14:18,020 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-20 23:14:18,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:14:18,020 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-20 23:14:18,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:14:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-20 23:14:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-20 23:14:18,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:14:18,023 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:14:18,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 23:14:18,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:18,227 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:14:18,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:14:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash 659673767, now seen corresponding path program 1 times [2021-11-20 23:14:18,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:14:18,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010075326] [2021-11-20 23:14:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:18,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:14:18,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:14:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447345223] [2021-11-20 23:14:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:14:18,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:14:18,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:14:18,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:14:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d09ebe64-d4dd-448e-879c-80d3f9750e84/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:14:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:14:18,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:14:18,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:14:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:14:18,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:14:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:14:18,652 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:14:18,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010075326] [2021-11-20 23:14:18,652 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:14:18,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447345223] [2021-11-20 23:14:18,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447345223] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:14:18,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [31849312] [2021-11-20 23:14:18,656 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:14:18,657 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:14:18,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:14:18,657 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:14:18,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:14:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:18,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:18,785 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:14:18,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-20 23:14:18,834 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:14:18,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-20 23:14:18,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:18,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:14:18,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-20 23:14:18,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:18,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:14:19,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:19,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:14:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:14:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-20 23:14:19,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:19,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:19,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-20 23:14:20,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-20 23:14:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,153 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:14:20,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:14:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:14:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,296 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:14:20,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:14:20,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,344 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:14:20,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-20 23:14:20,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:20,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:14:20,826 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 [2021-11-20 23:14:20,833 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 [2021-11-20 23:14:20,840 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 [2021-11-20 23:14:20,885 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:14:20,886 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 85 treesize of output 88 [2021-11-20 23:14:20,911 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:14:20,911 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 88 treesize of output 91 [2021-11-20 23:14:20,934 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:14:20,935 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 91 treesize of output 94 [2021-11-20 23:14:21,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-20 23:14:21,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:14:21,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-20 23:14:21,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 23:14:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:14:21,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-20 23:14:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:14:21,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 23:14:21,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:21,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-20 23:14:29,783 WARN L227 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:14:29,784 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:14:29,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-20 23:14:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:37,877 WARN L227 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:14:37,878 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:14:37,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-20 23:14:48,541 WARN L227 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:14:48,542 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-20 23:14:48,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-20 23:14:49,915 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-20 23:14:49,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-20 23:14:50,954 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-20 23:14:50,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-20 23:14:52,636 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:14:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:52,975 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 23:14:52,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-20 23:14:53,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:53,766 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:14:53,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61