./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:26:33,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:26:33,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:26:33,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:26:33,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:26:33,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:26:33,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:26:33,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:26:33,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:26:33,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:26:33,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:26:33,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:26:33,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:26:33,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:26:33,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:26:33,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:26:33,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:26:33,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:26:33,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:26:33,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:26:33,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:26:33,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:26:33,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:26:33,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:26:33,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:26:33,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:26:33,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:26:33,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:26:33,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:26:33,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:26:33,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:26:33,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:26:33,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:26:33,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:26:33,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:26:33,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:26:33,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:26:33,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:26:33,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:26:33,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:26:33,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:26:33,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:26:33,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:26:33,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:26:33,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:26:33,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:26:33,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:26:33,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:26:33,287 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:26:33,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:26:33,287 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:26:33,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:26:33,288 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:26:33,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:26:33,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:26:33,289 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:26:33,289 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:26:33,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:26:33,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:26:33,290 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:26:33,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:26:33,291 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:26:33,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:26:33,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:26:33,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:26:33,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:26:33,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:26:33,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:26:33,293 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:26:33,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:26:33,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:26:33,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:26:33,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:26:33,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:26:33,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:26:33,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:26:33,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:26:33,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:26:33,295 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:26:33,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:26:33,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:26:33,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:26:33,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:26:33,297 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_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 [2021-11-25 18:26:33,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:26:33,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:26:33,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:26:33,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:26:33,567 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:26:33,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2021-11-25 18:26:33,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/data/424327218/30235edb9d3f4c46b27d91e172763c9f/FLAGd73ecfb40 [2021-11-25 18:26:34,133 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:26:34,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2021-11-25 18:26:34,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/data/424327218/30235edb9d3f4c46b27d91e172763c9f/FLAGd73ecfb40 [2021-11-25 18:26:34,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/data/424327218/30235edb9d3f4c46b27d91e172763c9f [2021-11-25 18:26:34,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:26:34,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:26:34,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:26:34,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:26:34,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:26:34,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5661460c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34, skipping insertion in model container [2021-11-25 18:26:34,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:26:34,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:26:34,846 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_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i[24132,24145] [2021-11-25 18:26:34,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:26:34,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:26:34,901 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_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i[24132,24145] [2021-11-25 18:26:34,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:26:34,932 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:26:34,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34 WrapperNode [2021-11-25 18:26:34,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:26:34,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:26:34,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:26:34,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:26:34,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,977 INFO L137 Inliner]: procedures = 122, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2021-11-25 18:26:34,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:26:34,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:26:34,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:26:34,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:26:34,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:34,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:35,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:35,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:35,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:26:35,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:26:35,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:26:35,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:26:35,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (1/1) ... [2021-11-25 18:26:35,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:26:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:35,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:26:35,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:26:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-25 18:26:35,096 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-25 18:26:35,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:26:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:26:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:26:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:26:35,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:26:35,217 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:26:35,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:26:35,272 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-25 18:26:35,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:26:35,472 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:26:35,472 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 18:26:35,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:35 BoogieIcfgContainer [2021-11-25 18:26:35,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:26:35,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:26:35,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:26:35,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:26:35,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:34" (1/3) ... [2021-11-25 18:26:35,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9c2fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:35, skipping insertion in model container [2021-11-25 18:26:35,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:34" (2/3) ... [2021-11-25 18:26:35,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9c2fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:35, skipping insertion in model container [2021-11-25 18:26:35,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:35" (3/3) ... [2021-11-25 18:26:35,483 INFO L111 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2021-11-25 18:26:35,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:26:35,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:26:35,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:26:35,543 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:26:35,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:26:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:26:35,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:35,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:35,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:35,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash -342196433, now seen corresponding path program 1 times [2021-11-25 18:26:35,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:35,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825443699] [2021-11-25 18:26:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:35,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:35,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:35,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825443699] [2021-11-25 18:26:35,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825443699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:35,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:35,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:26:35,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715909951] [2021-11-25 18:26:35,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:35,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:26:35,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:26:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:26:35,834 INFO L87 Difference]: Start difference. First operand has 22 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:35,899 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2021-11-25 18:26:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:26:35,902 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 18:26:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:35,909 INFO L225 Difference]: With dead ends: 38 [2021-11-25 18:26:35,909 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 18:26:35,912 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 [2021-11-25 18:26:35,917 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:35,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 39 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:26:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 18:26:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-11-25 18:26:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-25 18:26:35,956 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 7 [2021-11-25 18:26:35,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:35,957 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-25 18:26:35,957 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-25 18:26:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 18:26:35,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:35,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:35,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:26:35,960 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash 272535787, now seen corresponding path program 1 times [2021-11-25 18:26:35,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040792334] [2021-11-25 18:26:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:35,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:36,135 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:36,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040792334] [2021-11-25 18:26:36,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040792334] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:26:36,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706430055] [2021-11-25 18:26:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:36,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:36,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:36,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:36,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:26:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:36,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:26:36,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:36,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:26:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:36,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706430055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:26:36,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1853924071] [2021-11-25 18:26:36,376 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 18:26:36,376 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:26:36,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:26:36,386 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:26:36,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:26:36,511 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 18:26:36,512 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 [2021-11-25 18:26:36,556 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:26:36,557 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 [2021-11-25 18:26:36,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:36,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,653 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 31 treesize of output 37 [2021-11-25 18:26:36,776 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 18:26:36,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2021-11-25 18:26:36,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:26:36,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2021-11-25 18:26:36,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:36,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-25 18:26:36,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-25 18:26:37,127 INFO L354 Elim1Store]: treesize reduction 48, result has 37.7 percent of original size [2021-11-25 18:26:37,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 46 [2021-11-25 18:26:37,255 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:26:37,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 18:26:37,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,597 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-25 18:26:37,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 390 treesize of output 373 [2021-11-25 18:26:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,688 INFO L354 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2021-11-25 18:26:37,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 388 treesize of output 382 [2021-11-25 18:26:37,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,780 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 18:26:37,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 397 treesize of output 384 [2021-11-25 18:26:37,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:37,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:37,886 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-25 18:26:37,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 445 treesize of output 432 [2021-11-25 18:26:38,221 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-25 18:26:38,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 431 treesize of output 437 [2021-11-25 18:26:38,384 INFO L354 Elim1Store]: treesize reduction 226, result has 16.9 percent of original size [2021-11-25 18:26:38,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 436 treesize of output 457 [2021-11-25 18:26:38,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:38,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:38,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:26:38,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:26:38,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:38,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:38,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:26:38,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:26:38,911 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 15 treesize of output 1 [2021-11-25 18:26:38,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:26:39,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:26:39,030 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:26:40,007 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '162#(and (= |ULTIMATE.start_main_~data_new~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (not (= |ULTIMATE.start_main_~data_init~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_main_~head~1#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0))' at error location [2021-11-25 18:26:40,007 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:26:40,008 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:26:40,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-25 18:26:40,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592261665] [2021-11-25 18:26:40,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:26:40,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:26:40,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:40,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:26:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:26:40,013 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:40,058 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2021-11-25 18:26:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:26:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 18:26:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:40,061 INFO L225 Difference]: With dead ends: 34 [2021-11-25 18:26:40,061 INFO L226 Difference]: Without dead ends: 25 [2021-11-25 18:26:40,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:26:40,067 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:40,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:26:40,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-25 18:26:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-25 18:26:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-11-25 18:26:40,078 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 10 [2021-11-25 18:26:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:40,079 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-11-25 18:26:40,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-11-25 18:26:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:26:40,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:40,080 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:40,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:40,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 18:26:40,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:40,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1478446127, now seen corresponding path program 2 times [2021-11-25 18:26:40,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:40,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109795584] [2021-11-25 18:26:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:40,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:26:40,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:40,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109795584] [2021-11-25 18:26:40,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109795584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:26:40,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422372027] [2021-11-25 18:26:40,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:26:40,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:40,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:26:40,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:26:40,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:26:40,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 18:26:40,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:41,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:26:41,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:41,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 18:26:41,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:26:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 18:26:41,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:26:42,617 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_213 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_213)) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4)))) is different from false [2021-11-25 18:26:42,764 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 4 not checked. [2021-11-25 18:26:42,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422372027] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:26:42,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1293751501] [2021-11-25 18:26:42,774 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 18:26:42,780 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:26:42,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:26:42,780 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:26:42,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:26:42,832 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:26:42,833 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 [2021-11-25 18:26:42,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:26:42,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:42,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:42,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:42,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:42,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:42,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:42,913 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 31 treesize of output 37 [2021-11-25 18:26:42,975 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 18:26:42,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-25 18:26:43,035 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 18:26:43,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2021-11-25 18:26:43,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-25 18:26:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-25 18:26:43,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2021-11-25 18:26:43,245 INFO L354 Elim1Store]: treesize reduction 48, result has 37.7 percent of original size [2021-11-25 18:26:43,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 46 [2021-11-25 18:26:43,349 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:26:43,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 18:26:43,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,597 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-25 18:26:43,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 390 treesize of output 373 [2021-11-25 18:26:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,669 INFO L354 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2021-11-25 18:26:43,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 388 treesize of output 382 [2021-11-25 18:26:43,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,733 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 18:26:43,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 397 treesize of output 384 [2021-11-25 18:26:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:43,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:43,798 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-25 18:26:43,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 445 treesize of output 432 [2021-11-25 18:26:44,189 INFO L354 Elim1Store]: treesize reduction 218, result has 19.9 percent of original size [2021-11-25 18:26:44,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 436 treesize of output 465 [2021-11-25 18:26:44,240 INFO L354 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2021-11-25 18:26:44,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 431 treesize of output 437 [2021-11-25 18:26:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:44,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:44,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:26:44,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:26:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-25 18:26:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:44,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:44,704 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 15 treesize of output 1 [2021-11-25 18:26:44,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:26:44,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:26:44,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:26:44,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 18:26:44,836 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:26:46,008 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '374#(and (= |ULTIMATE.start_main_~data_new~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (not (= |ULTIMATE.start_main_~data_init~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_main_~head~1#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0))' at error location [2021-11-25 18:26:46,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:26:46,008 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:26:46,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 18 [2021-11-25 18:26:46,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059740049] [2021-11-25 18:26:46,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:26:46,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-25 18:26:46,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:26:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-25 18:26:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=507, Unknown=1, NotChecked=46, Total=650 [2021-11-25 18:26:46,011 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:46,611 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (and (= |c_ULTIMATE.start_main_~data_init~0#1| |c_ULTIMATE.start_sll_circular_create_~data#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse0 (+ |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4))) (<= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |c_ULTIMATE.start_main_~data_init~0#1| 1) (= (select .cse0 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_213 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_213)) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4)))) (not (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~last~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1) (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (not (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) is different from false [2021-11-25 18:26:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:46,704 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-11-25 18:26:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:26:46,704 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 18:26:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:46,705 INFO L225 Difference]: With dead ends: 29 [2021-11-25 18:26:46,705 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 18:26:46,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=147, Invalid=729, Unknown=2, NotChecked=114, Total=992 [2021-11-25 18:26:46,707 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:46,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2021-11-25 18:26:46,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 18:26:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-25 18:26:46,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:46,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-11-25 18:26:46,713 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2021-11-25 18:26:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:46,713 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-25 18:26:46,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-11-25 18:26:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 18:26:46,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:46,715 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:46,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:46,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-25 18:26:46,916 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:46,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash -500115451, now seen corresponding path program 1 times [2021-11-25 18:26:46,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:26:46,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177566383] [2021-11-25 18:26:46,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:46,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:26:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:26:47,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:26:47,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177566383] [2021-11-25 18:26:47,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177566383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:26:47,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237957275] [2021-11-25 18:26:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:47,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:26:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:26:47,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:26:47,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c64cdd-b1d7-4bcb-ba9f-0f6976a8fd79/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:26:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:47,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-25 18:26:47,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:47,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:26:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:47,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:47,734 INFO L354 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2021-11-25 18:26:47,735 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 18 treesize of output 28 [2021-11-25 18:26:47,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:26:47,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:47,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2021-11-25 18:26:47,834 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 18:26:47,834 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 31 treesize of output 30 [2021-11-25 18:26:47,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 18:26:47,863 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-25 18:26:47,864 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 19 treesize of output 18 [2021-11-25 18:26:48,013 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:48,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 29 [2021-11-25 18:26:48,024 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:48,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2021-11-25 18:26:48,041 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 18:26:48,041 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 22 treesize of output 30 [2021-11-25 18:26:48,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:26:48,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:48,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2021-11-25 18:26:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:26:48,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:26:48,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:26:48,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:26:48,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:26:48,437 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_378 Int) (v_ArrVal_371 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (v_ArrVal_380 Int) (v_ArrVal_377 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse0 (select (store (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse2 v_ArrVal_380) |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|)) (.cse1 (select (store (select (store |c_#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|)) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse2 v_ArrVal_378) |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|))) (or (= |c_ULTIMATE.start_main_~data_init~0#1| (select (select (store (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_371)) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| v_ArrVal_377) .cse0) (+ .cse1 4))) (and (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| .cse0) (= .cse1 |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|)))))) is different from false [2021-11-25 18:26:48,518 INFO L354 Elim1Store]: treesize reduction 73, result has 34.8 percent of original size [2021-11-25 18:26:48,518 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 176 [2021-11-25 18:26:48,536 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:48,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 204 [2021-11-25 18:26:48,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:48,583 INFO L354 Elim1Store]: treesize reduction 54, result has 45.5 percent of original size [2021-11-25 18:26:48,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 122 [2021-11-25 18:26:48,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:48,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 114 [2021-11-25 18:26:48,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2021-11-25 18:26:48,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:26:48,698 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:48,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 78 [2021-11-25 18:26:48,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2021-11-25 18:26:49,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2021-11-25 18:26:49,278 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:26:49,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 370 treesize of output 334 [2021-11-25 18:26:49,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3