./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0706d1a5964bb8391155a217bd6084c2519a4607ef121976461541c97aecebc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:43:41,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:43:41,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:43:41,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:43:41,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:43:41,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:43:41,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:43:41,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:43:41,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:43:41,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:43:41,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:43:41,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:43:41,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:43:41,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:43:41,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:43:41,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:43:41,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:43:41,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:43:41,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:43:41,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:43:41,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:43:41,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:43:41,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:43:41,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:43:41,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:43:41,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:43:41,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:43:41,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:43:41,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:43:41,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:43:41,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:43:41,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:43:41,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:43:41,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:43:41,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:43:41,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:43:41,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:43:41,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:43:41,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:43:41,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:43:41,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:43:41,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 14:43:41,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:43:41,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:43:41,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:43:41,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:43:41,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:43:41,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:43:41,537 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:43:41,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:43:41,537 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:43:41,537 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:43:41,538 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:43:41,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:43:41,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:43:41,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:43:41,539 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:43:41,539 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:43:41,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:43:41,540 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:43:41,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 14:43:41,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 14:43:41,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:43:41,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:43:41,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:43:41,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:43:41,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:43:41,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:43:41,543 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 14:43:41,543 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 14:43:41,543 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 14:43:41,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:43:41,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:43:41,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:43:41,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:43:41,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:43:41,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:43:41,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:41,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:43:41,546 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:43:41,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:43:41,546 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:43:41,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:43:41,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:43:41,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0706d1a5964bb8391155a217bd6084c2519a4607ef121976461541c97aecebc [2022-11-23 14:43:41,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:43:41,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:43:41,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:43:41,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:43:41,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:43:41,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i [2022-11-23 14:43:44,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:43:45,224 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:43:45,224 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i [2022-11-23 14:43:45,246 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/data/52e4597ed/ce2acff960bb484b9877f81df5b3f2b9/FLAG84302321a [2022-11-23 14:43:45,265 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/data/52e4597ed/ce2acff960bb484b9877f81df5b3f2b9 [2022-11-23 14:43:45,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:43:45,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:43:45,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:45,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:43:45,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:43:45,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb8b3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45, skipping insertion in model container [2022-11-23 14:43:45,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:43:45,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:43:45,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i[24092,24105] [2022-11-23 14:43:45,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:45,742 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:43:45,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i[24092,24105] [2022-11-23 14:43:45,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:45,802 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:43:45,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45 WrapperNode [2022-11-23 14:43:45,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:45,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:45,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:43:45,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:43:45,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,844 INFO L138 Inliner]: procedures = 122, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-23 14:43:45,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:45,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:43:45,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:43:45,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:43:45,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:43:45,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:43:45,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:43:45,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:43:45,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (1/1) ... [2022-11-23 14:43:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:45,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:45,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:43:45,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:43:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-23 14:43:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-23 14:43:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:43:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:43:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:43:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:43:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:43:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:43:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:43:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:43:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:43:45,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:43:46,104 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:43:46,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:43:46,126 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-23 14:43:46,356 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:43:46,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:43:46,436 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 14:43:46,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:46 BoogieIcfgContainer [2022-11-23 14:43:46,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:43:46,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:43:46,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:43:46,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:43:46,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:43:45" (1/3) ... [2022-11-23 14:43:46,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78bc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:46, skipping insertion in model container [2022-11-23 14:43:46,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:45" (2/3) ... [2022-11-23 14:43:46,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78bc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:46, skipping insertion in model container [2022-11-23 14:43:46,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:46" (3/3) ... [2022-11-23 14:43:46,449 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-2.i [2022-11-23 14:43:46,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:43:46,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-11-23 14:43:46,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:43:46,527 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b75161b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:43:46,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-23 14:43:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 27 states have (on average 2.259259259259259) internal successors, (61), 53 states have internal predecessors, (61), 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) [2022-11-23 14:43:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 14:43:46,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:46,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 14:43:46,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:46,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:46,547 INFO L85 PathProgramCache]: Analyzing trace with hash 152257, now seen corresponding path program 1 times [2022-11-23 14:43:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:46,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428162901] [2022-11-23 14:43:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:46,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:46,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:46,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428162901] [2022-11-23 14:43:46,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428162901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:46,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:46,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:43:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692067578] [2022-11-23 14:43:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:46,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:46,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:46,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:46,863 INFO L87 Difference]: Start difference. First operand has 55 states, 27 states have (on average 2.259259259259259) internal successors, (61), 53 states have internal predecessors, (61), 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, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 14:43:46,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:46,989 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2022-11-23 14:43:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:46,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-23 14:43:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:46,999 INFO L225 Difference]: With dead ends: 67 [2022-11-23 14:43:46,999 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 14:43:47,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,004 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 44 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:47,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 43 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 14:43:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2022-11-23 14:43:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 2.0) internal successors, (50), 46 states have internal predecessors, (50), 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) [2022-11-23 14:43:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2022-11-23 14:43:47,040 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 3 [2022-11-23 14:43:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:47,041 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2022-11-23 14:43:47,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 14:43:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2022-11-23 14:43:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 14:43:47,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:47,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 14:43:47,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:43:47,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:47,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:47,044 INFO L85 PathProgramCache]: Analyzing trace with hash 152258, now seen corresponding path program 1 times [2022-11-23 14:43:47,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:47,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305228358] [2022-11-23 14:43:47,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:47,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:47,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305228358] [2022-11-23 14:43:47,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305228358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:47,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:47,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:43:47,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628382687] [2022-11-23 14:43:47,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:47,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:47,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:47,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,154 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 14:43:47,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:47,254 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2022-11-23 14:43:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:47,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-23 14:43:47,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:47,258 INFO L225 Difference]: With dead ends: 78 [2022-11-23 14:43:47,258 INFO L226 Difference]: Without dead ends: 78 [2022-11-23 14:43:47,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,260 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 37 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:47,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 56 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:47,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-23 14:43:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 47. [2022-11-23 14:43:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 46 states have internal predecessors, (51), 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) [2022-11-23 14:43:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-11-23 14:43:47,268 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 3 [2022-11-23 14:43:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:47,271 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-11-23 14:43:47,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-23 14:43:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-11-23 14:43:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:43:47,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:47,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:47,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:43:47,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1118452546, now seen corresponding path program 1 times [2022-11-23 14:43:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:47,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434707396] [2022-11-23 14:43:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:47,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:47,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434707396] [2022-11-23 14:43:47,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434707396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:47,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:47,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:43:47,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053106361] [2022-11-23 14:43:47,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:47,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:43:47,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:47,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:43:47,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:43:47,452 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-23 14:43:47,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:47,604 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-11-23 14:43:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:43:47,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 [2022-11-23 14:43:47,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:47,606 INFO L225 Difference]: With dead ends: 88 [2022-11-23 14:43:47,607 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 14:43:47,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:43:47,608 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 140 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:47,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 47 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 14:43:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 44. [2022-11-23 14:43:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.75) internal successors, (49), 43 states have internal predecessors, (49), 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) [2022-11-23 14:43:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-23 14:43:47,615 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 7 [2022-11-23 14:43:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:47,615 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-23 14:43:47,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2022-11-23 14:43:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-23 14:43:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:43:47,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:47,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:47,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:43:47,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:47,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1118452545, now seen corresponding path program 1 times [2022-11-23 14:43:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:47,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960621411] [2022-11-23 14:43:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:47,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:47,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:47,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960621411] [2022-11-23 14:43:47,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960621411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:47,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:47,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:43:47,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174231155] [2022-11-23 14:43:47,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:47,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:47,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:47,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:47,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,711 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. 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) [2022-11-23 14:43:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:47,730 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-23 14:43:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:47,731 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 [2022-11-23 14:43:47,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:47,732 INFO L225 Difference]: With dead ends: 49 [2022-11-23 14:43:47,732 INFO L226 Difference]: Without dead ends: 49 [2022-11-23 14:43:47,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,734 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:47,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:43:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-23 14:43:47,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-11-23 14:43:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 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) [2022-11-23 14:43:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-11-23 14:43:47,739 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 7 [2022-11-23 14:43:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:47,739 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-11-23 14:43:47,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-23 14:43:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-11-23 14:43:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:43:47,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:47,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:47,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:43:47,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:47,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1118553532, now seen corresponding path program 1 times [2022-11-23 14:43:47,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:47,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818515413] [2022-11-23 14:43:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:47,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:47,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:47,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818515413] [2022-11-23 14:43:47,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818515413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:47,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:47,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:43:47,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486364263] [2022-11-23 14:43:47,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:47,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,810 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 14:43:47,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:47,862 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-11-23 14:43:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:47,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-23 14:43:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:47,865 INFO L225 Difference]: With dead ends: 53 [2022-11-23 14:43:47,866 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 14:43:47,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,871 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 31 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:47,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:43:47,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 14:43:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2022-11-23 14:43:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 39 states have internal predecessors, (43), 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) [2022-11-23 14:43:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-11-23 14:43:47,878 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 7 [2022-11-23 14:43:47,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:47,878 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-11-23 14:43:47,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 14:43:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-11-23 14:43:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:43:47,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:47,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:47,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:43:47,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1118553531, now seen corresponding path program 1 times [2022-11-23 14:43:47,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:47,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222365077] [2022-11-23 14:43:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:47,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:47,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:47,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222365077] [2022-11-23 14:43:47,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222365077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:47,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:47,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:43:47,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050412271] [2022-11-23 14:43:47,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:47,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:43:47,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:43:47,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:47,972 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 14:43:48,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:48,032 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-23 14:43:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:43:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-23 14:43:48,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:48,033 INFO L225 Difference]: With dead ends: 38 [2022-11-23 14:43:48,033 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 14:43:48,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:43:48,035 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:48,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 23 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:43:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 14:43:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-23 14:43:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 37 states have internal predecessors, (41), 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) [2022-11-23 14:43:48,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-23 14:43:48,039 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 7 [2022-11-23 14:43:48,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:48,039 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-23 14:43:48,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-23 14:43:48,039 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-23 14:43:48,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:43:48,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:48,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:48,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:43:48,040 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:48,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1823073289, now seen corresponding path program 1 times [2022-11-23 14:43:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:48,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298971194] [2022-11-23 14:43:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:48,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:48,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298971194] [2022-11-23 14:43:48,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298971194] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:43:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739242376] [2022-11-23 14:43:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:43:48,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:48,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:43:48,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:43:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:48,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:43:48,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:48,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:43:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:48,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739242376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:43:48,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1502753095] [2022-11-23 14:43:48,408 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-23 14:43:48,408 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:43:48,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:43:48,418 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:43:48,419 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:43:48,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:43:48,579 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:43:48,598 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:43:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:43:48,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:43:48,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:43:48,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:43:48,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:43:48,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:43:48,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:43:48,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:43:48,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:48,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:43:49,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:43:49,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:43:49,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-23 14:43:49,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,416 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:43:49,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-11-23 14:43:49,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,479 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:43:49,480 INFO L350 Elim1Store]: Elim1 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 374 treesize of output 357 [2022-11-23 14:43:49,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,536 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:43:49,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-11-23 14:43:49,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,754 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:43:49,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 448 treesize of output 397 [2022-11-23 14:43:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,813 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-11-23 14:43:49,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 423 [2022-11-23 14:43:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:49,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:43:49,882 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-11-23 14:43:49,884 INFO L350 Elim1Store]: Elim1 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 442 treesize of output 436 [2022-11-23 14:43:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:50,163 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-23 14:43:50,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 436 treesize of output 434 [2022-11-23 14:43:50,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:43:50,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:43:50,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:43:50,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:50,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-11-23 14:43:50,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:43:50,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:43:50,531 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:43:50,532 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 14:43:50,563 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:43:50,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:43:50,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:43:50,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:43:50,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:43:50,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:43:50,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:43:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:50,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-11-23 14:43:50,767 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:43:50,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:43:50,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:43:50,820 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:43:51,831 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '773#(and (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |#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|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |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|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:43:51,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:43:51,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:43:51,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 14:43:51,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781886728] [2022-11-23 14:43:51,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:43:51,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:43:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:43:51,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:43:51,833 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2022-11-23 14:43:51,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:51,880 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-23 14:43:51,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:43:51,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) Word has length 10 [2022-11-23 14:43:51,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:51,881 INFO L225 Difference]: With dead ends: 50 [2022-11-23 14:43:51,881 INFO L226 Difference]: Without dead ends: 50 [2022-11-23 14:43:51,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:43:51,882 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:51,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 94 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:43:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-23 14:43:51,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-23 14:43:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.394736842105263) internal successors, (53), 49 states have internal predecessors, (53), 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) [2022-11-23 14:43:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-23 14:43:51,887 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 10 [2022-11-23 14:43:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:51,887 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-23 14:43:51,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2022-11-23 14:43:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-23 14:43:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 14:43:51,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:51,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-11-23 14:43:51,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:43:52,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 14:43:52,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:43:52,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1395492387, now seen corresponding path program 2 times [2022-11-23 14:43:52,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:52,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510047551] [2022-11-23 14:43:52,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:52,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:43:52,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:52,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510047551] [2022-11-23 14:43:52,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510047551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:43:52,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448330344] [2022-11-23 14:43:52,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:43:52,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:43:52,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:52,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:43:52,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:43:53,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-23 14:43:53,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:43:53,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 14:43:53,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:43:53,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:43:53,213 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:43:53,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:43:53,223 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-23 14:43:53,285 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:43:53,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:43:53,295 INFO L350 Elim1Store]: Elim1 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 14 treesize of output 16 [2022-11-23 14:43:53,418 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:43:53,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 20 [2022-11-23 14:43:53,460 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:43:53,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-23 14:43:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:43:53,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:43:53,714 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-23 14:43:53,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-11-23 14:43:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:43:53,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:06,685 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:44:20,714 WARN L233 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:44:20,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 326 [2022-11-23 14:44:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 18 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:29,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448330344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:29,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [472313242] [2022-11-23 14:44:29,536 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-23 14:44:29,536 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:29,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:29,538 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:29,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:44:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:44:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:44:29,601 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:29,609 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:44:29,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:29,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:44:29,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:29,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:44:29,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:29,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:44:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:29,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-23 14:44:29,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:29,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,024 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:30,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-11-23 14:44:30,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,108 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:44:30,109 INFO L350 Elim1Store]: Elim1 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 374 treesize of output 357 [2022-11-23 14:44:30,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,158 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:30,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-11-23 14:44:30,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,300 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:44:30,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 448 treesize of output 397 [2022-11-23 14:44:30,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,344 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-11-23 14:44:30,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 423 [2022-11-23 14:44:30,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:30,402 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-11-23 14:44:30,403 INFO L350 Elim1Store]: Elim1 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 442 treesize of output 436 [2022-11-23 14:44:30,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,648 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-11-23 14:44:30,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 436 treesize of output 434 [2022-11-23 14:44:30,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:30,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:30,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:44:30,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:30,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:44:30,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:30,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-11-23 14:44:30,936 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:44:30,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:44:30,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-23 14:44:30,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:44:30,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:31,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:31,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:31,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-11-23 14:44:31,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:44:31,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:31,131 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:44:31,131 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-23 14:44:31,184 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:44:31,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:44:31,201 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:32,414 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1030#(and (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |#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|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |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|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:44:32,414 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:44:32,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:32,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 21 [2022-11-23 14:44:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676096889] [2022-11-23 14:44:32,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:32,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 14:44:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 14:44:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=713, Unknown=6, NotChecked=0, Total=930 [2022-11-23 14:44:32,416 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 23 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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) [2022-11-23 14:44:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:32,633 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-11-23 14:44:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:44:32,634 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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 22 [2022-11-23 14:44:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:32,635 INFO L225 Difference]: With dead ends: 62 [2022-11-23 14:44:32,635 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 14:44:32,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 36.2s TimeCoverageRelationStatistics Valid=257, Invalid=793, Unknown=6, NotChecked=0, Total=1056 [2022-11-23 14:44:32,636 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 198 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:32,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 86 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:32,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 14:44:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 49. [2022-11-23 14:44:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.368421052631579) internal successors, (52), 48 states have internal predecessors, (52), 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) [2022-11-23 14:44:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-23 14:44:32,640 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 22 [2022-11-23 14:44:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:32,640 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-23 14:44:32,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 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) [2022-11-23 14:44:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-23 14:44:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 14:44:32,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:32,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:32,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:44:32,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:32,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 310593606, now seen corresponding path program 1 times [2022-11-23 14:44:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:32,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826761464] [2022-11-23 14:44:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 14:44:33,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:33,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826761464] [2022-11-23 14:44:33,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826761464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:33,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:33,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:44:33,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909118154] [2022-11-23 14:44:33,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:33,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:44:33,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:33,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:44:33,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:44:33,045 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-23 14:44:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:33,141 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2022-11-23 14:44:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 23 [2022-11-23 14:44:33,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:33,143 INFO L225 Difference]: With dead ends: 64 [2022-11-23 14:44:33,143 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 14:44:33,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:44:33,143 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 84 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:33,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 40 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 14:44:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2022-11-23 14:44:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 49 states have internal predecessors, (54), 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) [2022-11-23 14:44:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-23 14:44:33,147 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 23 [2022-11-23 14:44:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:33,147 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-23 14:44:33,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-11-23 14:44:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-23 14:44:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 14:44:33,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:33,148 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:33,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:44:33,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 310593607, now seen corresponding path program 1 times [2022-11-23 14:44:33,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:33,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098153179] [2022-11-23 14:44:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 14:44:33,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:33,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098153179] [2022-11-23 14:44:33,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098153179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:33,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:33,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:44:33,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37911657] [2022-11-23 14:44:33,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:33,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:44:33,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:33,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:44:33,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:44:33,392 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-23 14:44:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:33,496 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-11-23 14:44:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:44:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 23 [2022-11-23 14:44:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:33,497 INFO L225 Difference]: With dead ends: 55 [2022-11-23 14:44:33,497 INFO L226 Difference]: Without dead ends: 55 [2022-11-23 14:44:33,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:44:33,498 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:33,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 33 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-23 14:44:33,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2022-11-23 14:44:33,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 52 states have internal predecessors, (57), 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) [2022-11-23 14:44:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-11-23 14:44:33,502 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 23 [2022-11-23 14:44:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:33,502 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-11-23 14:44:33,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2022-11-23 14:44:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-11-23 14:44:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 14:44:33,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:33,503 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:33,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:44:33,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2127713017, now seen corresponding path program 1 times [2022-11-23 14:44:33,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:33,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756397588] [2022-11-23 14:44:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:33,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 14:44:34,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756397588] [2022-11-23 14:44:34,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756397588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227133228] [2022-11-23 14:44:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:34,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:34,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:34,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:34,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:44:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:34,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 14:44:34,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:34,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:44:34,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:34,658 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 14:44:34,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 14:44:34,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227133228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:34,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747831449] [2022-11-23 14:44:34,877 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-23 14:44:34,877 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:34,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:34,877 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:34,877 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:44:34,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:44:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:44:34,932 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:34,942 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:34,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:44:34,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:34,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:44:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:44:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:35,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:35,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:44:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:35,321 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-23 14:44:35,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-11-23 14:44:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,580 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:44:35,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 347 treesize of output 330 [2022-11-23 14:44:35,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,625 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:35,626 INFO L350 Elim1Store]: Elim1 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 343 treesize of output 341 [2022-11-23 14:44:35,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,672 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:35,673 INFO L350 Elim1Store]: Elim1 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 343 treesize of output 341 [2022-11-23 14:44:35,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,811 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:44:35,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 405 treesize of output 354 [2022-11-23 14:44:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,863 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-11-23 14:44:35,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 399 treesize of output 393 [2022-11-23 14:44:35,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:35,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:35,895 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-23 14:44:35,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 419 treesize of output 393 [2022-11-23 14:44:35,976 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:35,982 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:36,006 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:36,014 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:36,024 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:36,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:36,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-11-23 14:44:36,056 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-23 14:44:36,065 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-23 14:44:36,089 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:36,096 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:36,114 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:36,123 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:36,133 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:36,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:36,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:36,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:44:36,225 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:37,729 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1557#(and (= |ULTIMATE.start_main_~data_new~0#1| 1) (<= (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |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|) (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0))' at error location [2022-11-23 14:44:37,730 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:44:37,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:37,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2022-11-23 14:44:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600529725] [2022-11-23 14:44:37,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:37,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 14:44:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 14:44:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:44:37,734 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 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) [2022-11-23 14:44:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:38,237 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-11-23 14:44:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:44:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 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 25 [2022-11-23 14:44:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:38,238 INFO L225 Difference]: With dead ends: 66 [2022-11-23 14:44:38,238 INFO L226 Difference]: Without dead ends: 66 [2022-11-23 14:44:38,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 14:44:38,239 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 204 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:38,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 81 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-23 14:44:38,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2022-11-23 14:44:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 52 states have internal predecessors, (56), 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) [2022-11-23 14:44:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-11-23 14:44:38,243 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 25 [2022-11-23 14:44:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:38,243 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-11-23 14:44:38,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 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) [2022-11-23 14:44:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-11-23 14:44:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:44:38,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:38,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:38,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:38,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1571648776, now seen corresponding path program 1 times [2022-11-23 14:44:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:38,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076831923] [2022-11-23 14:44:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:38,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:39,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:39,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076831923] [2022-11-23 14:44:39,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076831923] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:39,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535012050] [2022-11-23 14:44:39,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:39,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:39,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:44:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:39,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-23 14:44:39,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:39,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:44:39,884 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:44:39,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-11-23 14:44:39,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:39,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:39,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-23 14:44:40,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:40,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 14:44:40,079 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:44:40,080 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 28 [2022-11-23 14:44:40,096 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:44:40,096 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:40,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:40,313 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:44:40,314 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 44 [2022-11-23 14:44:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:40,322 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:44:40,322 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 53 treesize of output 55 [2022-11-23 14:44:40,358 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:40,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 32 [2022-11-23 14:44:40,369 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:40,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 31 [2022-11-23 14:44:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:40,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:41,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535012050] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:41,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040546744] [2022-11-23 14:44:41,107 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 14:44:41,108 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:41,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:41,108 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:41,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:44:41,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:44:41,179 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:41,187 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:41,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:44:41,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:44:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:41,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:41,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:44:41,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:41,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:41,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:44:41,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:41,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:44:41,545 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-23 14:44:41,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-11-23 14:44:41,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:41,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:41,812 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:41,812 INFO L350 Elim1Store]: Elim1 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 348 treesize of output 346 [2022-11-23 14:44:41,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:41,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:41,859 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:41,860 INFO L350 Elim1Store]: Elim1 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 348 treesize of output 346 [2022-11-23 14:44:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:41,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:41,906 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:44:41,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 352 treesize of output 335 [2022-11-23 14:44:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,018 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:44:42,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 426 treesize of output 375 [2022-11-23 14:44:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,073 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-11-23 14:44:42,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 420 treesize of output 414 [2022-11-23 14:44:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,117 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-11-23 14:44:42,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 440 treesize of output 401 [2022-11-23 14:44:42,209 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:42,218 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:42,235 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:42,243 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:42,250 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:42,268 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-23 14:44:42,277 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-23 14:44:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-11-23 14:44:42,310 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:42,317 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:42,338 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:42,345 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:42,352 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:42,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:44:42,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:42,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:42,467 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:42,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:42,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:42,590 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-11-23 14:44:42,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 30 [2022-11-23 14:44:42,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,671 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-11-23 14:44:42,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-11-23 14:44:42,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:42,745 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-11-23 14:44:42,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-11-23 14:44:42,766 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:44:42,775 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:44:43,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:43,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:43,050 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:43,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:43,158 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:43,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:43,172 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:44,564 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1886#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 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|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-23 14:44:44,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:44:44,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:44,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-11-23 14:44:44,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723080839] [2022-11-23 14:44:44,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 14:44:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 14:44:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:44:44,567 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2022-11-23 14:44:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:46,051 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2022-11-23 14:44:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 14:44:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 28 [2022-11-23 14:44:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:46,052 INFO L225 Difference]: With dead ends: 108 [2022-11-23 14:44:46,052 INFO L226 Difference]: Without dead ends: 108 [2022-11-23 14:44:46,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=442, Invalid=2008, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 14:44:46,054 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 646 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:46,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 162 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:44:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-23 14:44:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 60. [2022-11-23 14:44:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 59 states have internal predecessors, (68), 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) [2022-11-23 14:44:46,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-11-23 14:44:46,059 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 28 [2022-11-23 14:44:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:46,059 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-11-23 14:44:46,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2022-11-23 14:44:46,060 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-11-23 14:44:46,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:44:46,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:46,061 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:46,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:46,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:46,267 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1571648777, now seen corresponding path program 1 times [2022-11-23 14:44:46,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:46,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888572696] [2022-11-23 14:44:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:46,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:47,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888572696] [2022-11-23 14:44:47,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888572696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057547029] [2022-11-23 14:44:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:47,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:47,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:44:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:47,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-23 14:44:47,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:47,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:44:47,733 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:44:47,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-11-23 14:44:47,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:47,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:47,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-23 14:44:47,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:47,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 14:44:47,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:47,960 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:44:47,960 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 28 [2022-11-23 14:44:47,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:47,977 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:44:47,977 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:48,257 INFO L321 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2022-11-23 14:44:48,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 80 [2022-11-23 14:44:48,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:48,286 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-23 14:44:48,287 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 58 treesize of output 70 [2022-11-23 14:44:48,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:48,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 60 [2022-11-23 14:44:48,537 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-11-23 14:44:48,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 53 [2022-11-23 14:44:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:48,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:49,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057547029] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:49,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1712961471] [2022-11-23 14:44:49,785 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 14:44:49,785 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:49,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:49,785 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:49,786 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:44:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:44:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:44:49,862 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:49,870 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:49,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:49,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:44:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:49,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:49,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:44:49,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:44:50,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:50,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:44:50,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:44:50,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:44:50,234 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-23 14:44:50,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-11-23 14:44:50,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,460 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:44:50,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 343 treesize of output 326 [2022-11-23 14:44:50,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,512 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:50,513 INFO L350 Elim1Store]: Elim1 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 339 treesize of output 337 [2022-11-23 14:44:50,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,573 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:44:50,574 INFO L350 Elim1Store]: Elim1 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 339 treesize of output 337 [2022-11-23 14:44:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,708 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-11-23 14:44:50,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 391 treesize of output 385 [2022-11-23 14:44:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,739 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-23 14:44:50,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 411 treesize of output 385 [2022-11-23 14:44:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:50,767 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:44:50,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 397 treesize of output 350 [2022-11-23 14:44:50,841 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:50,847 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:50,862 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:50,869 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:50,876 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:50,893 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-23 14:44:50,899 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-23 14:44:50,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:50,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-11-23 14:44:50,929 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:50,937 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:50,954 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:50,961 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:44:50,971 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:44:51,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:51,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:44:51,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:51,071 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:51,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:51,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:51,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:44:51,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:51,225 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-11-23 14:44:51,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-11-23 14:44:51,258 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-11-23 14:44:51,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 30 [2022-11-23 14:44:51,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:44:51,337 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-11-23 14:44:51,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-11-23 14:44:51,355 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:44:51,360 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:44:51,585 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:51,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:51,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:51,695 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:44:51,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:51,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:44:51,718 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:53,328 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2287#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|))) (not (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 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|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-23 14:44:53,328 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:44:53,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:53,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2022-11-23 14:44:53,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228847279] [2022-11-23 14:44:53,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:53,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-23 14:44:53,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-23 14:44:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1257, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 14:44:53,330 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 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) [2022-11-23 14:44:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:56,226 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2022-11-23 14:44:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 14:44:56,227 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 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 28 [2022-11-23 14:44:56,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:56,228 INFO L225 Difference]: With dead ends: 97 [2022-11-23 14:44:56,228 INFO L226 Difference]: Without dead ends: 97 [2022-11-23 14:44:56,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=574, Invalid=2618, Unknown=0, NotChecked=0, Total=3192 [2022-11-23 14:44:56,230 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 855 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:56,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 125 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 14:44:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-23 14:44:56,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2022-11-23 14:44:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 61 states have internal predecessors, (68), 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) [2022-11-23 14:44:56,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-11-23 14:44:56,234 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 28 [2022-11-23 14:44:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:56,234 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-11-23 14:44:56,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 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) [2022-11-23 14:44:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-11-23 14:44:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:44:56,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:56,235 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:56,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:56,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:56,443 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:44:56,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1474013381, now seen corresponding path program 1 times [2022-11-23 14:44:56,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364308594] [2022-11-23 14:44:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:58,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:58,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364308594] [2022-11-23 14:44:58,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364308594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:58,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362891016] [2022-11-23 14:44:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:58,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:58,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:58,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 14:44:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:58,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-23 14:44:58,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:58,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:44:58,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:58,636 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-23 14:44:58,637 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:58,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-23 14:44:58,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:58,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:58,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 14:44:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:58,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-11-23 14:44:58,732 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-23 14:44:58,732 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 36 [2022-11-23 14:44:58,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2022-11-23 14:44:58,835 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:44:58,836 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:58,849 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-23 14:44:58,849 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:59,030 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:44:59,031 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 55 treesize of output 57 [2022-11-23 14:44:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:59,043 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:44:59,043 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 48 treesize of output 46 [2022-11-23 14:44:59,060 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-23 14:44:59,060 INFO L350 Elim1Store]: Elim1 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 41 treesize of output 51 [2022-11-23 14:44:59,114 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:59,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2022-11-23 14:44:59,124 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:59,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 33 [2022-11-23 14:44:59,247 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:44:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:44:59,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:45:01,756 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse3 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse62 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse62 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse62 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))))) (.cse10 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse61 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse61 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse61 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse13 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse59 (select (store (let ((.cse60 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse60 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse60 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse59 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse59 .cse4))))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse8 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (or (= (select (select (store (let ((.cse58 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse58 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse58 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse7 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse56 (select (store (let ((.cse57 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse57 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse57 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse56 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse56 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse2 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (.cse20 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse55 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse21 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse54 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)))))))) (and (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse0 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse0 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse0 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse2) .cse3 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse5 (select (store (let ((.cse6 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse5 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse5 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))))) .cse7 (or (and .cse8 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse9 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse3 .cse7 .cse10 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= (select (select (store (let ((.cse11 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select (select (store (let ((.cse12 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse12 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse12 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse13 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse14 (select (store (let ((.cse15 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse15 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse15 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse14 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse14 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (let ((.cse16 (select (store (let ((.cse17 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse16 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse16 .cse4))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse18 (select (store (let ((.cse19 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse19 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse19 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse18 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse18 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse20 .cse21) .cse2) .cse13 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse22 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse2) (or (let ((.cse25 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) (.cse31 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse50 (select (store (let ((.cse51 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse50 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse50 .cse4)))))))) (.cse34 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse49 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse38 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse48 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse23 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse46 (select (store (let ((.cse47 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse46 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse46 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) (.cse24 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse45 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse36 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (or (= (select (select (store (let ((.cse44 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (and (or (and .cse23 .cse24 .cse25 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (= (select (select (store (let ((.cse26 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse26 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse26 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (let ((.cse27 (select (store (let ((.cse28 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse27 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse27 .cse4))))) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse29 (select (store (let ((.cse30 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse29 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse29 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse31 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse32 (select (store (let ((.cse33 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse32 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse32 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse34 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse35 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse36 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse37 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse37 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse37 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse38) .cse2) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse39 (select (store (let ((.cse40 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse39 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |c_ULTIMATE.start_main_~data_init~0#1| (select .cse39 .cse4))))) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse23 .cse24 .cse25 .cse31 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse41 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) .cse2) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse42 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse2) .cse34 (or (and .cse31 .cse34 .cse38) .cse2) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse43 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse2) (or (and .cse23 .cse24 .cse36) .cse2))) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (or (and .cse10 .cse13 .cse21) .cse2) (or (and .cse8 .cse7 .cse20) .cse2) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse1) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse1) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse2) .cse20 .cse21))) is different from false [2022-11-23 14:45:04,273 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse60 (select (store (let ((.cse61 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse61 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse61 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse60 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse60 4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse7 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse59 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse59 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse59 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse12 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse58 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse58 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse58 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))))) (.cse2 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (or (= (select (select (store (let ((.cse57 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse57 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse57 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse1 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse55 (select (store (let ((.cse56 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse56 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse56 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse55 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse55 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse15 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse54 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse16 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (.cse17 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0))) (and .cse0 .cse1 (or (and .cse2 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse3 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse3 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse3 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse5 (select (store (let ((.cse6 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse5 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse5 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse7 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= (select (select (store (let ((.cse8 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse8 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse8 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse9 (select (store (let ((.cse10 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse10 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse10 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse9 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse9 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse1 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select (select (store (let ((.cse11 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse12 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (let ((.cse13 (select (store (let ((.cse14 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse13 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse13 4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) .cse15 .cse16) .cse17) (or (and .cse0 .cse7 .cse16) .cse17) .cse12 (or (and .cse2 .cse1 .cse15) .cse17) (or .cse17 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse18 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (or (let ((.cse21 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (or (= (select (select (store (let ((.cse48 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse34 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse47 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse19 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse46 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse20 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse44 (select (store (let ((.cse45 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse44 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse44 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) (.cse26 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse43 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse31 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse41 (select (store (let ((.cse42 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse41 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse41 4) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (.cse32 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse40 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (and (or (and .cse19 .cse20 .cse21) .cse17) (or (and (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse22 (select (store (let ((.cse23 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse22 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse22 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse19 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (= (select (select (store (let ((.cse24 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse24 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse24 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) .cse20 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse25 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse25 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse25 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse26 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse27 (select (store (let ((.cse28 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse27 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse27 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (let ((.cse29 (select (store (let ((.cse30 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse29 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse29 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse31 .cse21 .cse32 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (= (select (select (store (let ((.cse33 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse34) .cse17) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse35 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) .cse17) (or .cse17 (and .cse26 .cse31 .cse34)) .cse19 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (v_ArrVal_1133 Int) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse36 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse36 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse36 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse17) .cse20 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse37 (select (store (let ((.cse38 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse37 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse37 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse26 (or .cse17 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse39 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse39 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse39 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse31 .cse32)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0)) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int)) (let ((.cse49 (select (store (let ((.cse50 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse50 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse50 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse49 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse49 4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse15 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse51 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse17) .cse16 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1133 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1133))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse17)))) is different from false [2022-11-23 14:45:04,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:04,941 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 37 [2022-11-23 14:45:04,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:04,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:04,954 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:04,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2022-11-23 14:45:04,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2022-11-23 14:45:05,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 14:45:05,019 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,019 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,030 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,030 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,038 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,038 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,045 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,046 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,053 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,054 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,069 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:05,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 61 [2022-11-23 14:45:05,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,087 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-23 14:45:05,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2229 treesize of output 2134 [2022-11-23 14:45:05,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2235 treesize of output 2139 [2022-11-23 14:45:05,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2147 treesize of output 2095 [2022-11-23 14:45:05,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2103 treesize of output 1905 [2022-11-23 14:45:05,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:05,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 975 treesize of output 927 [2022-11-23 14:45:05,713 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,713 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,720 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,721 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,730 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,730 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,739 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,739 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,747 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,747 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,756 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,756 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,764 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,764 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,778 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,778 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,786 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,786 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,794 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,794 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,802 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,802 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,813 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,813 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,820 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,820 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,828 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,828 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,839 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,839 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,847 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,847 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,855 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,856 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,863 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,863 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,872 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,872 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,879 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,880 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:05,888 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,888 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 91 treesize of output 1 [2022-11-23 14:45:05,897 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-23 14:45:05,897 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 46 treesize of output 1 [2022-11-23 14:45:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 10 not checked. [2022-11-23 14:45:06,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362891016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:45:06,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126164129] [2022-11-23 14:45:06,049 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 14:45:06,049 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:45:06,050 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:45:06,050 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:45:06,050 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:45:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:45:06,094 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:45:06,112 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:06,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:45:06,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:06,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:45:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:45:06,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:45:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:45:06,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:45:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:45:06,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:45:06,419 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-23 14:45:06,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-11-23 14:45:06,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,616 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:45:06,616 INFO L350 Elim1Store]: Elim1 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 348 treesize of output 346 [2022-11-23 14:45:06,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,662 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:45:06,663 INFO L350 Elim1Store]: Elim1 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 348 treesize of output 346 [2022-11-23 14:45:06,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,703 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:45:06,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 352 treesize of output 335 [2022-11-23 14:45:06,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,821 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-11-23 14:45:06,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 440 treesize of output 401 [2022-11-23 14:45:06,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,880 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-11-23 14:45:06,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 420 treesize of output 414 [2022-11-23 14:45:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:06,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:06,922 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:45:06,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 426 treesize of output 375 [2022-11-23 14:45:06,993 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:06,999 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:07,014 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:07,021 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:07,030 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:45:07,052 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-23 14:45:07,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:07,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-11-23 14:45:07,069 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-23 14:45:07,089 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:07,096 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:07,113 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:07,120 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:07,127 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:45:07,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:07,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:45:07,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:07,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:07,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:07,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:07,247 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:45:07,331 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-11-23 14:45:07,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 25 [2022-11-23 14:45:07,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:07,411 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-11-23 14:45:07,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-11-23 14:45:07,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:07,485 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-11-23 14:45:07,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-11-23 14:45:07,495 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:45:07,500 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-23 14:45:07,754 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:45:07,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:45:07,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:45:07,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:45:07,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:45:07,893 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:45:07,898 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:45:09,786 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2706#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (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)))) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 1 |ULTIMATE.start_main_~data_new~0#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-23 14:45:09,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:45:09,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:45:09,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 12] total 35 [2022-11-23 14:45:09,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168478489] [2022-11-23 14:45:09,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:45:09,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-23 14:45:09,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:09,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-23 14:45:09,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1872, Unknown=17, NotChecked=178, Total=2256 [2022-11-23 14:45:09,789 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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) [2022-11-23 14:45:15,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:15,083 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-11-23 14:45:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:45:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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 30 [2022-11-23 14:45:15,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:15,085 INFO L225 Difference]: With dead ends: 82 [2022-11-23 14:45:15,085 INFO L226 Difference]: Without dead ends: 82 [2022-11-23 14:45:15,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=517, Invalid=3256, Unknown=17, NotChecked=242, Total=4032 [2022-11-23 14:45:15,086 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 189 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:15,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 162 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 518 Invalid, 0 Unknown, 97 Unchecked, 0.8s Time] [2022-11-23 14:45:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-23 14:45:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2022-11-23 14:45:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 61 states have internal predecessors, (67), 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) [2022-11-23 14:45:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-11-23 14:45:15,100 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 30 [2022-11-23 14:45:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:15,100 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-11-23 14:45:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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) [2022-11-23 14:45:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-11-23 14:45:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 14:45:15,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:15,101 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:15,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:15,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 14:45:15,309 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:45:15,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:15,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1549114860, now seen corresponding path program 1 times [2022-11-23 14:45:15,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:15,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202704125] [2022-11-23 14:45:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:15,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:45:16,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:16,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202704125] [2022-11-23 14:45:16,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202704125] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:45:16,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753912865] [2022-11-23 14:45:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:16,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:45:16,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:16,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:45:16,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:45:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:16,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 14:45:16,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:16,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:45:16,285 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:45:16,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:45:16,306 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 14:45:16,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-23 14:45:16,329 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-23 14:45:16,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-11-23 14:45:16,363 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-23 14:45:16,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-23 14:45:16,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:16,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-23 14:45:16,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-11-23 14:45:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-23 14:45:16,480 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:16,480 INFO L350 Elim1Store]: Elim1 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 16 treesize of output 11 [2022-11-23 14:45:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:45:16,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:45:16,518 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1312 (Array Int Int))) (not (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1312) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|)))) is different from false [2022-11-23 14:45:16,528 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1310 Int) (v_ArrVal_1312 (Array Int Int))) (not (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) v_ArrVal_1310)) |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| v_ArrVal_1312) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)))) is different from false [2022-11-23 14:45:16,538 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:45:16,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 30 [2022-11-23 14:45:16,542 INFO L350 Elim1Store]: Elim1 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 33 treesize of output 25 [2022-11-23 14:45:16,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-23 14:45:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 7 not checked. [2022-11-23 14:45:16,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753912865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:45:16,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [867010890] [2022-11-23 14:45:16,763 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-23 14:45:16,763 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:45:16,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:45:16,763 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:45:16,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:45:16,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:45:16,811 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:16,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-23 14:45:16,830 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:16,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-23 14:45:16,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-23 14:45:16,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-23 14:45:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:45:16,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:16,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-23 14:45:17,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:45:17,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-23 14:45:17,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:45:17,188 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-23 14:45:17,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-11-23 14:45:17,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,433 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-23 14:45:17,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 349 treesize of output 332 [2022-11-23 14:45:17,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,480 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:45:17,480 INFO L350 Elim1Store]: Elim1 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 345 treesize of output 343 [2022-11-23 14:45:17,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,528 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-23 14:45:17,529 INFO L350 Elim1Store]: Elim1 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 345 treesize of output 343 [2022-11-23 14:45:17,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,651 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-23 14:45:17,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 419 treesize of output 368 [2022-11-23 14:45:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,692 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-11-23 14:45:17,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 433 treesize of output 398 [2022-11-23 14:45:17,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:17,744 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-11-23 14:45:17,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 413 treesize of output 407 [2022-11-23 14:45:17,828 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:17,836 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:17,850 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:17,857 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:17,865 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:45:17,881 INFO L350 Elim1Store]: Elim1 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 13 treesize of output 9 [2022-11-23 14:45:17,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:17,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-11-23 14:45:17,900 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-23 14:45:17,919 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:17,926 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:45:17,944 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:17,951 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 1 [2022-11-23 14:45:17,959 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:17,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:17,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:18,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:45:18,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:18,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:18,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-23 14:45:18,086 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-23 14:45:18,164 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:45:21,117 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3095#(and (<= (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)) (= |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) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~head~1#1.base|) |ULTIMATE.start_main_~head~1#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~head~1#1.base|) |ULTIMATE.start_main_~head~1#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~head~1#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) (<= (+ |ULTIMATE.start_main_~head~1#1.offset| 8) (select |#length| |ULTIMATE.start_main_~head~1#1.base|)) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= (+ (select (select |#memory_int| |ULTIMATE.start_main_~head~1#1.base|) (+ |ULTIMATE.start_main_~head~1#1.offset| 4)) 1) (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~data_new~0#1|)) (= (select (select |#memory_int| |ULTIMATE.start_main_~head~1#1.base|) (+ |ULTIMATE.start_main_~head~1#1.offset| 4)) 1) (<= |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|) (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0) (= (select |#valid| |ULTIMATE.start_main_~head~1#1.base|) 1))' at error location [2022-11-23 14:45:21,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:45:21,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:45:21,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-11-23 14:45:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814715842] [2022-11-23 14:45:21,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:45:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-23 14:45:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-23 14:45:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=793, Unknown=2, NotChecked=118, Total=1056 [2022-11-23 14:45:21,119 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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) [2022-11-23 14:45:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:21,754 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-11-23 14:45:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:45:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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 31 [2022-11-23 14:45:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:21,756 INFO L225 Difference]: With dead ends: 70 [2022-11-23 14:45:21,756 INFO L226 Difference]: Without dead ends: 70 [2022-11-23 14:45:21,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=274, Invalid=1292, Unknown=2, NotChecked=154, Total=1722 [2022-11-23 14:45:21,757 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 236 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:21,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 192 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 260 Invalid, 0 Unknown, 89 Unchecked, 0.3s Time] [2022-11-23 14:45:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-23 14:45:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 57. [2022-11-23 14:45:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 56 states have internal predecessors, (60), 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) [2022-11-23 14:45:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-11-23 14:45:21,759 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 31 [2022-11-23 14:45:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:21,760 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-11-23 14:45:21,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 states have internal predecessors, (58), 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) [2022-11-23 14:45:21,760 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-11-23 14:45:21,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 14:45:21,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:21,761 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:45:21,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:21,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 14:45:21,967 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-23 14:45:21,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -586485370, now seen corresponding path program 2 times [2022-11-23 14:45:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:21,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595468896] [2022-11-23 14:45:21,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:21,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:45:24,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595468896] [2022-11-23 14:45:24,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595468896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:45:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740898914] [2022-11-23 14:45:24,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:45:24,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:45:24,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:24,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:45:24,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3001c779-904d-4749-9bc1-9e7a30607f80/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 14:45:24,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 14:45:24,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:45:24,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-23 14:45:24,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:24,668 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:45:24,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-23 14:45:24,728 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-11-23 14:45:24,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-23 14:45:24,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 14:45:24,869 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-23 14:45:24,869 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 16 treesize of output 26 [2022-11-23 14:45:24,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:24,974 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:45:24,974 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 32 [2022-11-23 14:45:24,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:45:25,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 75 [2022-11-23 14:45:25,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:25,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:25,138 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:45:25,139 INFO L350 Elim1Store]: Elim1 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 55 [2022-11-23 14:45:25,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:25,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:25,345 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-11-23 14:45:25,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 69 [2022-11-23 14:45:25,366 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:45:25,367 INFO L350 Elim1Store]: Elim1 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 36 treesize of output 38 [2022-11-23 14:45:25,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-11-23 14:45:26,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 113 [2022-11-23 14:45:26,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:26,124 INFO L321 Elim1Store]: treesize reduction 112, result has 32.9 percent of original size [2022-11-23 14:45:26,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 126 treesize of output 145 [2022-11-23 14:45:26,886 INFO L350 Elim1Store]: Elim1 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 120 treesize of output 100 [2022-11-23 14:45:28,151 INFO L321 Elim1Store]: treesize reduction 314, result has 44.1 percent of original size [2022-11-23 14:45:28,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 35 case distinctions, treesize of input 200 treesize of output 384 [2022-11-23 14:45:28,300 INFO L321 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2022-11-23 14:45:28,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 162