./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 --- 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-2329fc7 [2022-12-14 06:37:27,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:37:27,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:37:27,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:37:27,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:37:27,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:37:27,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:37:27,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:37:27,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:37:27,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:37:27,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:37:27,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:37:27,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:37:27,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:37:27,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:37:27,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:37:27,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:37:27,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:37:27,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:37:27,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:37:27,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:37:27,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:37:27,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:37:27,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:37:27,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:37:27,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:37:27,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:37:27,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:37:27,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:37:27,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:37:27,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:37:27,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:37:27,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:37:27,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:37:27,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:37:27,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:37:27,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:37:27,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:37:27,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:37:27,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:37:27,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:37:27,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:37:27,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:37:27,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:37:27,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:37:27,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:37:27,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:37:27,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:37:27,162 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:37:27,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:37:27,163 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:37:27,164 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:37:27,164 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:37:27,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:37:27,164 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:37:27,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:37:27,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:37:27,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:37:27,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:37:27,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:37:27,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:37:27,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:37:27,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:37:27,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:37:27,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:27,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:37:27,167 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:37:27,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:37:27,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:37:27,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:37:27,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:37:27,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:37:27,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:37:27,168 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_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d83e632829c1e193271bd76b90e08187eb94c70000e5f11d7aea101b3ec9a9e6 [2022-12-14 06:37:27,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:37:27,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:37:27,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:37:27,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:37:27,354 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:37:27,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2022-12-14 06:37:29,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:37:30,064 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:37:30,064 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/sv-benchmarks/c/list-simple/sll2c_append_unequal.i [2022-12-14 06:37:30,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/data/f497f9956/215b9ab74ec149e78a9507766978b9b1/FLAGac5131d03 [2022-12-14 06:37:30,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/data/f497f9956/215b9ab74ec149e78a9507766978b9b1 [2022-12-14 06:37:30,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:37:30,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:37:30,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:30,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:37:30,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:37:30,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fb3c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30, skipping insertion in model container [2022-12-14 06:37:30,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:37:30,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:37:30,350 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_9967455a-38cc-4512-a6f4-b2112bb3aca3/sv-benchmarks/c/list-simple/sll2c_append_unequal.i[24587,24600] [2022-12-14 06:37:30,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:30,361 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:37:30,389 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_9967455a-38cc-4512-a6f4-b2112bb3aca3/sv-benchmarks/c/list-simple/sll2c_append_unequal.i[24587,24600] [2022-12-14 06:37:30,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:30,407 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:37:30,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30 WrapperNode [2022-12-14 06:37:30,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:30,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:30,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:37:30,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:37:30,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,438 INFO L138 Inliner]: procedures = 127, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 158 [2022-12-14 06:37:30,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:30,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:37:30,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:37:30,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:37:30,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:37:30,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:37:30,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:37:30,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:37:30,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (1/1) ... [2022-12-14 06:37:30,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:30,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:30,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:37:30,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-12-14 06:37:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:37:30,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:37:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:37:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:37:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:37:30,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:37:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:37:30,619 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:37:30,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:37:30,824 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:37:30,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:37:30,848 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-14 06:37:30,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:30 BoogieIcfgContainer [2022-12-14 06:37:30,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:37:30,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:37:30,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:37:30,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:37:30,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:37:30" (1/3) ... [2022-12-14 06:37:30,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457add12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:30, skipping insertion in model container [2022-12-14 06:37:30,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:30" (2/3) ... [2022-12-14 06:37:30,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457add12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:30, skipping insertion in model container [2022-12-14 06:37:30,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:30" (3/3) ... [2022-12-14 06:37:30,857 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_append_unequal.i [2022-12-14 06:37:30,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:37:30,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:37:30,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:37:30,912 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4939b9d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:37:30,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:37:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 27 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:37:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 06:37:30,922 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:30,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:30,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1374255989, now seen corresponding path program 1 times [2022-12-14 06:37:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:30,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607100144] [2022-12-14 06:37:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:30,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:37:31,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607100144] [2022-12-14 06:37:31,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607100144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:31,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:37:31,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:37:31,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863588669] [2022-12-14 06:37:31,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:31,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:37:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:31,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:37:31,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:37:31,234 INFO L87 Difference]: Start difference. First operand has 32 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 27 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:37:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:31,274 INFO L93 Difference]: Finished difference Result 61 states and 90 transitions. [2022-12-14 06:37:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:37:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-12-14 06:37:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:31,281 INFO L225 Difference]: With dead ends: 61 [2022-12-14 06:37:31,281 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:37:31,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:37:31,286 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:31,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:37:31,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:37:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-12-14 06:37:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:37:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-12-14 06:37:31,314 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 18 [2022-12-14 06:37:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:31,314 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-12-14 06:37:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:37:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-12-14 06:37:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 06:37:31,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:31,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:31,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:37:31,316 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:31,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1632824436, now seen corresponding path program 1 times [2022-12-14 06:37:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:31,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574437993] [2022-12-14 06:37:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:37:31,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574437993] [2022-12-14 06:37:31,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574437993] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:31,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525546873] [2022-12-14 06:37:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:31,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:31,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:31,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:37:31,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:37:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:31,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-14 06:37:31,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:37:32,039 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 8 treesize of output 4 [2022-12-14 06:37:32,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,106 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 [2022-12-14 06:37:32,137 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 16 treesize of output 8 [2022-12-14 06:37:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:37:32,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:37:32,214 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_12| Int) (v_ArrVal_184 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_12| v_ArrVal_184) |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) 0)) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_12| |c_#StackHeapBarrier|)))) is different from false [2022-12-14 06:37:32,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525546873] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:32,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2117023078] [2022-12-14 06:37:32,230 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-12-14 06:37:32,230 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:37:32,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:37:32,237 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:37:32,237 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:37:32,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,284 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:37:32,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:37:32,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,301 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 [2022-12-14 06:37:32,343 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 [2022-12-14 06:37:32,348 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 [2022-12-14 06:37:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,381 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 16 treesize of output 17 [2022-12-14 06:37:32,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:32,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:32,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:32,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:32,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:32,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:32,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:32,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:32,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-12-14 06:37:32,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:32,774 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:32,776 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:32,777 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:32,778 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:32,781 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:33,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:33,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:33,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:33,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:33,072 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,074 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,075 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,078 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,079 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:33,122 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 19 treesize of output 11 [2022-12-14 06:37:33,133 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 11 [2022-12-14 06:37:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:33,142 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 23 treesize of output 11 [2022-12-14 06:37:33,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:33,288 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 140 treesize of output 124 [2022-12-14 06:37:33,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,296 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 136 treesize of output 124 [2022-12-14 06:37:33,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,303 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 128 treesize of output 116 [2022-12-14 06:37:33,436 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 [2022-12-14 06:37:33,443 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 [2022-12-14 06:37:33,453 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 [2022-12-14 06:37:33,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,541 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:33,541 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 15 treesize of output 7 [2022-12-14 06:37:33,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,560 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:33,560 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 15 treesize of output 7 [2022-12-14 06:37:33,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,654 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:33,655 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 15 treesize of output 7 [2022-12-14 06:37:33,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,671 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:33,671 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 15 treesize of output 7 [2022-12-14 06:37:33,795 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 192 treesize of output 174 [2022-12-14 06:37:33,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:33,815 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 192 treesize of output 174 [2022-12-14 06:37:33,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,850 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 06:37:33,850 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 211 treesize of output 186 [2022-12-14 06:37:33,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:33,877 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 06:37:33,878 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 203 treesize of output 178 [2022-12-14 06:37:34,107 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-12-14 06:37:34,113 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 [2022-12-14 06:37:34,118 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 [2022-12-14 06:37:34,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:34,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:34,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:34,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:34,144 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 16 treesize of output 17 [2022-12-14 06:37:34,146 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:37:37,243 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '280#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= (select |#valid| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 5) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |ULTIMATE.start_sll_circular_append_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (+ |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 4))) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_sll_circular_append_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_append_~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (not (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_sll_circular_append_~data#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_main_~last~2#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= 8 (select |#length| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (< |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~last~2#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 06:37:37,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:37:37,244 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:37:37,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-12-14 06:37:37,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196082849] [2022-12-14 06:37:37,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:37:37,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 06:37:37,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:37,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 06:37:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1139, Unknown=1, NotChecked=68, Total=1332 [2022-12-14 06:37:37,248 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-14 06:37:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:37,553 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2022-12-14 06:37:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:37:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 25 [2022-12-14 06:37:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:37,554 INFO L225 Difference]: With dead ends: 40 [2022-12-14 06:37:37,554 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:37:37,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=179, Invalid=1546, Unknown=1, NotChecked=80, Total=1806 [2022-12-14 06:37:37,555 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:37,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 212 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:37:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:37:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-12-14 06:37:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:37:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-12-14 06:37:37,558 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 25 [2022-12-14 06:37:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:37,559 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-12-14 06:37:37,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-14 06:37:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-12-14 06:37:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 06:37:37,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:37,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:37,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:37:37,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:37,761 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1696549931, now seen corresponding path program 1 times [2022-12-14 06:37:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:37,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346552346] [2022-12-14 06:37:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:37:38,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:38,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346552346] [2022-12-14 06:37:38,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346552346] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:38,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907051968] [2022-12-14 06:37:38,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:38,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:38,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:38,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:37:38,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:37:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:38,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 135 conjunts are in the unsatisfiable core [2022-12-14 06:37:38,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:37:38,649 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 [2022-12-14 06:37:38,672 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 [2022-12-14 06:37:38,704 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:37:38,704 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 [2022-12-14 06:37:38,784 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:38,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:37:38,824 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 13 treesize of output 9 [2022-12-14 06:37:38,889 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 06:37:38,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-12-14 06:37:38,966 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 [2022-12-14 06:37:38,979 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 [2022-12-14 06:37:39,065 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:37:39,065 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 45 [2022-12-14 06:37:39,075 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 26 treesize of output 28 [2022-12-14 06:37:39,180 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 06:37:39,181 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29 [2022-12-14 06:37:39,192 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:39,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:39,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:39,203 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 7 treesize of output 3 [2022-12-14 06:37:39,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,337 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 14 treesize of output 16 [2022-12-14 06:37:39,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,360 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 06:37:39,361 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 2 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 06:37:39,377 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 06:37:39,377 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 [2022-12-14 06:37:39,382 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 [2022-12-14 06:37:39,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,405 INFO L321 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2022-12-14 06:37:39,405 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 33 treesize of output 33 [2022-12-14 06:37:39,671 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-12-14 06:37:39,671 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 77 [2022-12-14 06:37:39,688 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-12-14 06:37:39,688 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 141 treesize of output 104 [2022-12-14 06:37:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:39,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-12-14 06:37:39,709 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 06:37:39,709 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 44 [2022-12-14 06:37:39,714 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 30 treesize of output 32 [2022-12-14 06:37:39,857 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 22 treesize of output 10 [2022-12-14 06:37:40,037 INFO L321 Elim1Store]: treesize reduction 16, result has 56.8 percent of original size [2022-12-14 06:37:40,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 73 [2022-12-14 06:37:40,112 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 06:37:40,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:37:40,484 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_347 (Array Int Int)) (v_ArrVal_341 Int) (|ULTIMATE.start_sll_circular_append_~last~1#1.offset| Int) (v_ArrVal_340 (Array Int Int)) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_343 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_340))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_343) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_347) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| v_ArrVal_341)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_342) .cse1) (+ .cse2 4))) (not (= .cse1 (select (select .cse3 .cse1) .cse2)))))))) is different from false [2022-12-14 06:37:40,501 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_347 (Array Int Int)) (v_ArrVal_341 Int) (|ULTIMATE.start_sll_circular_append_~last~1#1.offset| Int) (v_ArrVal_340 (Array Int Int)) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_343 (Array Int Int))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| .cse3 (store (select |c_#memory_$Pointer$.base| .cse3) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base|)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_340))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (select (select (store (store |c_#memory_$Pointer$.offset| .cse3 v_ArrVal_343) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_347) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= .cse0 (select (select .cse1 .cse0) .cse2))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse3 (store (select |c_#memory_int| .cse3) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| v_ArrVal_341)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_342) .cse0) (+ .cse2 4)))))))) is different from false [2022-12-14 06:37:40,573 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| Int) (v_ArrVal_359 (Array Int Int)) (v_ArrVal_358 (Array Int Int)) (v_ArrVal_347 (Array Int Int)) (v_ArrVal_341 Int) (|ULTIMATE.start_sll_circular_append_~last~1#1.offset| Int) (v_ArrVal_340 (Array Int Int)) (v_ArrVal_342 (Array Int Int)) (v_ArrVal_343 (Array Int Int)) (v_ArrVal_357 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_358))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse1 (store (store .cse5 .cse4 (store (select .cse5 .cse4) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16|)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_340))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (select (select (store (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_357) .cse4 v_ArrVal_343) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_347) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= .cse0 (select (select .cse1 .cse0) .cse2))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (let ((.cse3 (store |c_#memory_int| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_359))) (store .cse3 .cse4 (store (select .cse3 .cse4) |ULTIMATE.start_sll_circular_append_~last~1#1.offset| v_ArrVal_341))) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| v_ArrVal_342) .cse0) (+ .cse2 4))) (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16|) 0)) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_16| |c_#StackHeapBarrier|)))))))) is different from false [2022-12-14 06:37:40,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907051968] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:40,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [811949099] [2022-12-14 06:37:40,577 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 06:37:40,577 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:37:40,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:37:40,577 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:37:40,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:37:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,601 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:37:40,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 06:37:40,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,622 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:37:40,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:37:40,646 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 [2022-12-14 06:37:40,649 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 [2022-12-14 06:37:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:40,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,670 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 16 treesize of output 17 [2022-12-14 06:37:40,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:40,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:40,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:40,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:40,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:40,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:40,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:40,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:40,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:40,915 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 205 [2022-12-14 06:37:40,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:40,925 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 207 [2022-12-14 06:37:40,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:40,935 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 110 [2022-12-14 06:37:40,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:40,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,109 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 19 treesize of output 11 [2022-12-14 06:37:41,116 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 11 [2022-12-14 06:37:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,126 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 23 treesize of output 11 [2022-12-14 06:37:41,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:41,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:41,301 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:37:41,301 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 1 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 06:37:41,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,312 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 25 treesize of output 13 [2022-12-14 06:37:41,329 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:37:41,329 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 1 case distinctions, treesize of input 34 treesize of output 25 [2022-12-14 06:37:41,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-12-14 06:37:41,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,410 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:41,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:41,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,432 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:41,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:41,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-12-14 06:37:41,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,493 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:41,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:41,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,528 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:41,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:41,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,693 INFO L321 Elim1Store]: treesize reduction 95, result has 36.2 percent of original size [2022-12-14 06:37:41,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 119 treesize of output 137 [2022-12-14 06:37:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,771 INFO L321 Elim1Store]: treesize reduction 24, result has 52.0 percent of original size [2022-12-14 06:37:41,771 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 5 case distinctions, treesize of input 53 treesize of output 49 [2022-12-14 06:37:41,783 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 [2022-12-14 06:37:41,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:37:41,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-12-14 06:37:41,819 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:41,828 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,892 INFO L321 Elim1Store]: treesize reduction 120, result has 19.5 percent of original size [2022-12-14 06:37:41,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 115 treesize of output 108 [2022-12-14 06:37:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:41,942 INFO L321 Elim1Store]: treesize reduction 24, result has 52.0 percent of original size [2022-12-14 06:37:41,942 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 5 case distinctions, treesize of input 49 treesize of output 45 [2022-12-14 06:37:41,956 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 [2022-12-14 06:37:41,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:41,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:37:41,984 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 06:37:42,065 INFO L321 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size [2022-12-14 06:37:42,065 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 2 case distinctions, treesize of input 39 treesize of output 26 [2022-12-14 06:37:42,758 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-12-14 06:37:42,763 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 [2022-12-14 06:37:42,765 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 [2022-12-14 06:37:42,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:42,774 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 16 treesize of output 17 [2022-12-14 06:37:42,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:42,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:42,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:42,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:42,782 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:37:50,523 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse10 (= |c_ULTIMATE.start_sll_circular_append_~head#1.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (.cse9 (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse3 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (.cse24 (not .cse9)) (.cse6 (not .cse10))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (or .cse24 .cse6)) (.cse2 (not .cse3))) (and (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~last~2#1.base|) |c_ULTIMATE.start_main_~last~2#1.offset|) .cse0) (= |c_ULTIMATE.start_main_~uneq~0#1| |c_ULTIMATE.start_sll_circular_append_#in~data#1|) (< 0 |c_#StackHeapBarrier|) (<= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= 5 |c_ULTIMATE.start_sll_circular_append_~data#1|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (<= |c_ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= |c_ULTIMATE.start_main_~uneq~0#1| 5) (<= |c_ULTIMATE.start_sll_circular_create_~data#1| 1) (< |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (<= |c_ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (< |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 0 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) (<= |c_ULTIMATE.start_sll_circular_create_#in~data#1| 1) (not (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.base| 0)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 2 |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 1 |c_ULTIMATE.start_sll_circular_create_#in~data#1|) (= |c_ULTIMATE.start_sll_circular_create_#res#1.offset| |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |c_#NULL.offset| 0) (<= |c_ULTIMATE.start_sll_circular_append_#in~data#1| 5) (= |c_ULTIMATE.start_sll_circular_append_#in~data#1| |c_ULTIMATE.start_sll_circular_append_~data#1|) (<= 1 |c_ULTIMATE.start_sll_circular_create_~len#1|) (<= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_sll_circular_create_~data#1|) (= (+ |c_ULTIMATE.start_sll_circular_create_~len#1| 1) |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |c_ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (= |c_ULTIMATE.start_main_~ptr~0#1.offset| .cse1) (= |c_ULTIMATE.start_main_~count~0#1| 0) (<= 0 |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (not (= 2 |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_#NULL.base| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| |c_ULTIMATE.start_sll_circular_create_#in~data#1|) (= |c_ULTIMATE.start_main_~len~0#1| |c_ULTIMATE.start_sll_circular_create_#in~len#1|) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (<= 0 |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~last~2#1.base|) |c_ULTIMATE.start_main_~last~2#1.offset|) .cse1) (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (or (not (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) .cse2) (<= |c_ULTIMATE.start_sll_circular_append_~data#1| 5) (= |c_ULTIMATE.start_main_~ptr~0#1.base| .cse0) (= |c_ULTIMATE.start_main_~last~2#1.offset| .cse1) (= |c_ULTIMATE.start_main_~last~2#1.base| .cse0) (= |c_ULTIMATE.start_sll_circular_append_#in~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (or (and (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| 4) .cse3) (= (select (select |c_#memory_int| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 4) |c_ULTIMATE.start_sll_circular_append_~data#1|)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.base| |c_ULTIMATE.start_sll_circular_create_#res#1.base|) (let ((.cse4 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (.cse8 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (or (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|))) (and .cse4 .cse5 (or .cse6 (and (or .cse2 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse7 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse7 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (= .cse8 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (or (and .cse9 .cse10) (= (select .cse7 |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)))) (and .cse4 .cse9 .cse10 (or (exists ((v_DerPreprocessor_5 (Array Int Int))) (and (= (select v_DerPreprocessor_5 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (exists ((v_DerPreprocessor_4 (Array Int Int))) (let ((.cse11 (select (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse11 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= v_DerPreprocessor_4 .cse11)))))) (exists ((v_DerPreprocessor_5 (Array Int Int))) (and (= (select v_DerPreprocessor_5 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (exists ((v_DerPreprocessor_4 (Array Int Int))) (let ((.cse12 (store (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_4) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_5))) (let ((.cse13 (select .cse12 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|))) (and (= (select (select .cse12 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select .cse13 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= v_DerPreprocessor_4 .cse13)))))))) (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| .cse8)))) (<= 0 |c_ULTIMATE.start_main_~#s~0#1.base|) (not (= 0 |c_ULTIMATE.start_main_~#s~0#1.base|)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |c_ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |c_ULTIMATE.start_sll_circular_create_#in~data#1| |c_ULTIMATE.start_sll_circular_create_~data#1|) (not (= |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.base| 0)) (<= 5 |c_ULTIMATE.start_sll_circular_append_#in~data#1|) (<= 0 |c_ULTIMATE.start_sll_circular_append_#in~head#1.base|) (let ((.cse16 (not (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| 0))) (.cse15 (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|) |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (.cse14 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (.cse19 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and .cse9 (= .cse14 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) .cse10 .cse15 (or (and .cse16 (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse20 (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7))) (let ((.cse17 (select .cse20 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (.cse18 (select (select .cse20 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select .cse17 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse18 .cse19) (= .cse17 v_DerPreprocessor_6) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse18) (= .cse18 (select v_DerPreprocessor_7 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))))))) (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (let ((.cse23 (store (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (.cse22 (select (select .cse23 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (and (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select .cse21 |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= .cse22 .cse19) (not (= .cse22 0)) (= .cse21 v_DerPreprocessor_6) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse22) (= .cse22 (select v_DerPreprocessor_7 |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))))))) (and (or .cse16 (not (= .cse19 0))) (= |c_ULTIMATE.start_sll_circular_append_~last~1#1.offset| .cse19) .cse5 .cse15 (= .cse14 .cse19) (or (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| .cse19) (and .cse24 .cse2) .cse6)))) (= (select |c_#valid| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (= (select |c_#length| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 8) (not (= |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (< |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |c_#StackHeapBarrier|) (<= |c_ULTIMATE.start_sll_circular_create_~len#1| 1) (= |c_ULTIMATE.start_main_~len~0#1| 2))))) is different from true [2022-12-14 06:37:51,324 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '562#(and (< |#StackHeapBarrier| |ULTIMATE.start_main_~#s~0#1.base|) (< |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |#StackHeapBarrier|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (exists ((v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_6 (Array Int Int))) (and (= v_DerPreprocessor_6 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= (select v_DerPreprocessor_7 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_6) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_7) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= |ULTIMATE.start_sll_circular_append_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 4)) (= (select |#valid| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) 1) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base|) (< |ULTIMATE.start_sll_circular_create_~last~0#1.base| |#StackHeapBarrier|) (not (= |ULTIMATE.start_sll_circular_create_~last~0#1.base| 0)) (= (+ |ULTIMATE.start_sll_circular_create_~len#1| 1) |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_#in~data#1| |ULTIMATE.start_sll_circular_create_~data#1|) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_sll_circular_append_#in~data#1|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (not (= 2 |ULTIMATE.start_main_~#s~0#1.base|)) (= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (= |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_sll_circular_create_#in~len#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_append_~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| 0)) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| 0)) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_#in~data#1| |ULTIMATE.start_sll_circular_append_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_main_~last~2#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) (= 8 (select |#length| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (< |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| |#StackHeapBarrier|) (< 0 |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~last~2#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 06:37:51,324 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:37:51,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:37:51,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 38 [2022-12-14 06:37:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980991812] [2022-12-14 06:37:51,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:37:51,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-14 06:37:51,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:37:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-14 06:37:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=3641, Unknown=63, NotChecked=500, Total=4422 [2022-12-14 06:37:51,327 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:37:53,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:37:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:54,521 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2022-12-14 06:37:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:37:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2022-12-14 06:37:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:54,522 INFO L225 Difference]: With dead ends: 52 [2022-12-14 06:37:54,522 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 06:37:54,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1326 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=326, Invalid=4730, Unknown=72, NotChecked=572, Total=5700 [2022-12-14 06:37:54,523 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 75 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:54,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 339 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 746 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 06:37:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 06:37:54,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2022-12-14 06:37:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:37:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-12-14 06:37:54,528 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 28 [2022-12-14 06:37:54,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:54,529 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-12-14 06:37:54,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:37:54,529 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-12-14 06:37:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 06:37:54,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:54,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:54,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 06:37:54,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:54,731 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1928629530, now seen corresponding path program 1 times [2022-12-14 06:37:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374430978] [2022-12-14 06:37:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 06:37:55,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:37:55,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374430978] [2022-12-14 06:37:55,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374430978] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:55,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675149565] [2022-12-14 06:37:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:55,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:37:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:55,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:37:55,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:37:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:55,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 107 conjunts are in the unsatisfiable core [2022-12-14 06:37:55,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:37:55,904 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 [2022-12-14 06:37:56,033 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 [2022-12-14 06:37:56,095 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:37:56,095 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 [2022-12-14 06:37:56,141 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 [2022-12-14 06:37:56,207 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:37:56,207 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 58 [2022-12-14 06:37:56,270 INFO L321 Elim1Store]: treesize reduction 3, result has 81.3 percent of original size [2022-12-14 06:37:56,270 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 34 [2022-12-14 06:37:56,274 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 13 treesize of output 9 [2022-12-14 06:37:56,277 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 11 treesize of output 7 [2022-12-14 06:37:56,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:56,368 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 06:37:56,369 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 2 case distinctions, treesize of input 70 treesize of output 62 [2022-12-14 06:37:56,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:56,374 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 61 treesize of output 59 [2022-12-14 06:37:56,389 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-12-14 06:37:56,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 34 [2022-12-14 06:37:56,865 INFO L321 Elim1Store]: treesize reduction 104, result has 15.4 percent of original size [2022-12-14 06:37:56,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 144 treesize of output 67 [2022-12-14 06:37:56,883 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-12-14 06:37:56,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 107 [2022-12-14 06:37:56,899 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 06:37:56,900 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 148 [2022-12-14 06:37:56,982 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 122 treesize of output 94 [2022-12-14 06:37:57,081 INFO L321 Elim1Store]: treesize reduction 28, result has 24.3 percent of original size [2022-12-14 06:37:57,081 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 44 [2022-12-14 06:37:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:37:57,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:37:57,520 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_514 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| Int) (v_ArrVal_511 (Array Int Int))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse1) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (let ((.cse0 (select |c_#memory_$Pointer$.base| .cse4))) (or (not (= (select .cse0 |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13|) .cse1)) (not (let ((.cse3 (store (store |c_#memory_$Pointer$.base| .cse4 (store .cse0 |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_514))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse2 (select (select .cse3 .cse2) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 v_ArrVal_511) |c_ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_ArrVal_515) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))))))) is different from false [2022-12-14 06:37:57,702 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_514 (Array Int Int)) (|v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| Int) (|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| Int) (v_ArrVal_520 (Array Int Int)) (v_ArrVal_511 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_521))) (let ((.cse6 (select (select .cse4 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_520))) (let ((.cse3 (select (select .cse4 .cse6) (select (select .cse2 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)))) (let ((.cse5 (select .cse4 .cse3))) (or (not (let ((.cse1 (store (store .cse4 .cse3 (store .cse5 |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20|)) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_514))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (= .cse0 (select (select .cse1 .cse0) (select (select (store (store .cse2 .cse3 v_ArrVal_511) |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| v_ArrVal_515) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20| |c_#StackHeapBarrier|)) (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_20|) 0)) (not (= (select .cse5 |v_ULTIMATE.start_sll_circular_append_~last~1#1.offset_13|) .cse6)))))))) is different from false [2022-12-14 06:37:57,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675149565] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:37:57,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1985625831] [2022-12-14 06:37:57,706 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 06:37:57,706 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:37:57,706 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:37:57,706 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:37:57,706 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:37:57,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,725 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:37:57,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 06:37:57,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,742 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:37:57,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:37:57,761 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 [2022-12-14 06:37:57,764 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 [2022-12-14 06:37:57,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,772 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 16 treesize of output 17 [2022-12-14 06:37:57,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:57,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:37:57,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:57,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:57,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:37:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:57,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:37:57,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:57,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:57,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:57,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:57,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:57,992 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 11 [2022-12-14 06:37:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:58,000 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 23 treesize of output 11 [2022-12-14 06:37:58,011 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 19 treesize of output 11 [2022-12-14 06:37:58,214 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,215 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,216 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,217 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,219 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,381 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,382 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,383 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,385 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,386 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:58,448 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 23 treesize of output 11 [2022-12-14 06:37:58,454 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 11 [2022-12-14 06:37:58,461 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 19 treesize of output 11 [2022-12-14 06:37:58,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,781 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,782 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,783 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,784 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,785 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,921 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,922 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,923 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,924 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,925 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:58,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:58,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:58,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:59,005 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:37:59,005 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 06:37:59,013 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 23 treesize of output 11 [2022-12-14 06:37:59,027 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:37:59,028 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 06:37:59,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:59,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,081 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:59,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:59,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:59,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:59,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,117 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:59,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:59,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:59,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:37:59,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,184 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:59,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:59,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:37:59,205 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:59,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:37:59,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:37:59,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:59,398 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:37:59,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:37:59,453 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-12-14 06:37:59,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:37:59,465 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 [2022-12-14 06:37:59,484 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:37:59,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-12-14 06:37:59,500 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 [2022-12-14 06:37:59,516 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:37:59,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2022-12-14 06:37:59,530 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:59,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:37:59,631 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:37:59,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:37:59,692 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-12-14 06:37:59,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:37:59,706 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 [2022-12-14 06:37:59,726 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:37:59,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-12-14 06:37:59,739 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 [2022-12-14 06:37:59,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:37:59,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-12-14 06:37:59,779 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:37:59,840 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-12-14 06:37:59,840 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-12-14 06:38:00,335 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 13 for LOIs [2022-12-14 06:38:00,340 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 [2022-12-14 06:38:00,344 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 [2022-12-14 06:38:00,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:00,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:00,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:00,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:00,364 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 16 treesize of output 17 [2022-12-14 06:38:00,365 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:38:07,989 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '896#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 5 |ULTIMATE.start_sll_circular_append_#in~data#1|) (<= |ULTIMATE.start_sll_circular_append_~data#1| 5) (or (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|))) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (or (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (or (exists ((v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (and (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|) (select v_DerPreprocessor_14 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= v_DerPreprocessor_13 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|))) (exists ((v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (and (= v_DerPreprocessor_13 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_13) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_14) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|))) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_append_~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_main_~last~2#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~last~2#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 06:38:07,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:38:07,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:38:07,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 25] total 40 [2022-12-14 06:38:07,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664509494] [2022-12-14 06:38:07,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:38:07,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 06:38:07,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:07,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 06:38:07,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=3868, Unknown=79, NotChecked=254, Total=4422 [2022-12-14 06:38:07,991 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:10,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:38:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:12,265 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-12-14 06:38:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 06:38:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 30 [2022-12-14 06:38:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:12,265 INFO L225 Difference]: With dead ends: 64 [2022-12-14 06:38:12,265 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 06:38:12,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=451, Invalid=6115, Unknown=84, NotChecked=322, Total=6972 [2022-12-14 06:38:12,267 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 177 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:12,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 359 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 723 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 06:38:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 06:38:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 41. [2022-12-14 06:38:12,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:38:12,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-12-14 06:38:12,274 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 30 [2022-12-14 06:38:12,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:12,274 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-12-14 06:38:12,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-12-14 06:38:12,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:38:12,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:12,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:12,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:38:12,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:12,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2059622305, now seen corresponding path program 1 times [2022-12-14 06:38:12,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:12,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550999297] [2022-12-14 06:38:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:12,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:38:14,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550999297] [2022-12-14 06:38:14,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550999297] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:14,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130667781] [2022-12-14 06:38:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:14,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:14,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:14,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:38:14,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:38:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:14,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 175 conjunts are in the unsatisfiable core [2022-12-14 06:38:14,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:38:14,618 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 [2022-12-14 06:38:14,793 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 [2022-12-14 06:38:14,850 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 [2022-12-14 06:38:14,919 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:38:14,920 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 [2022-12-14 06:38:15,010 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 19 treesize of output 18 [2022-12-14 06:38:15,018 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 [2022-12-14 06:38:15,028 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 [2022-12-14 06:38:15,121 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 06:38:15,122 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 58 [2022-12-14 06:38:15,130 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 26 treesize of output 28 [2022-12-14 06:38:15,139 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 26 treesize of output 28 [2022-12-14 06:38:15,248 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:15,249 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 38 [2022-12-14 06:38:15,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:15,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:15,260 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 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 06:38:15,263 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 11 treesize of output 7 [2022-12-14 06:38:15,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:15,450 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 06:38:15,451 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 2 case distinctions, treesize of input 89 treesize of output 75 [2022-12-14 06:38:15,464 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 06:38:15,464 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 [2022-12-14 06:38:15,468 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 [2022-12-14 06:38:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:15,486 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 06:38:15,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 38 [2022-12-14 06:38:15,514 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-12-14 06:38:15,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 06:38:16,101 INFO L321 Elim1Store]: treesize reduction 107, result has 17.1 percent of original size [2022-12-14 06:38:16,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 231 treesize of output 132 [2022-12-14 06:38:16,130 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-12-14 06:38:16,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 372 treesize of output 251 [2022-12-14 06:38:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:16,164 INFO L321 Elim1Store]: treesize reduction 104, result has 22.4 percent of original size [2022-12-14 06:38:16,165 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 7 new quantified variables, introduced 4 case distinctions, treesize of input 325 treesize of output 210 [2022-12-14 06:38:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:16,184 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 06:38:16,184 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 2 case distinctions, treesize of input 281 treesize of output 221 [2022-12-14 06:38:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:16,201 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 80 [2022-12-14 06:38:16,205 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 46 treesize of output 48 [2022-12-14 06:38:16,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:16,604 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 06:38:16,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 125 [2022-12-14 06:38:16,711 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-12-14 06:38:16,712 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 50 [2022-12-14 06:38:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:38:16,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:38:18,688 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse15 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|)) (.cse16 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse6 (select (select |c_#memory_$Pointer$.offset| .cse15) .cse16)) (.cse4 (select (select |c_#memory_$Pointer$.base| .cse15) .cse16))) (let ((.cse5 (select |c_#memory_int| .cse4)) (.cse8 (store |c_#memory_$Pointer$.base| .cse4 (store (select |c_#memory_$Pointer$.base| .cse4) .cse6 |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base|))) (.cse9 (select |c_#memory_$Pointer$.offset| .cse4))) (and (forall ((v_ArrVal_679 (Array Int Int)) (|ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| Int) (v_ArrVal_691 Int) (v_ArrVal_683 (Array Int Int)) (v_ArrVal_682 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_$Pointer$.offset| .cse4 (store .cse9 .cse6 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_679)) (.cse3 (store .cse8 |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_682))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select .cse7 .cse2) .cse1))) (or (= .cse0 .cse1) (not (= .cse2 (select (select .cse3 (select (select .cse3 .cse2) .cse1)) .cse0))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse4 (store .cse5 .cse6 v_ArrVal_691)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_683) .cse2) (+ .cse1 4)))))))) (forall ((v_ArrVal_679 (Array Int Int)) (|ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| Int) (v_ArrVal_691 Int) (v_ArrVal_683 (Array Int Int)) (v_ArrVal_682 (Array Int Int))) (let ((.cse13 (store (store |c_#memory_$Pointer$.offset| .cse4 (store .cse9 .cse6 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_679)) (.cse12 (store .cse8 |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_682))) (let ((.cse10 (select (select .cse12 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse14 (select (select .cse13 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse11 (select (select .cse12 .cse10) .cse14))) (or (= .cse10 .cse11) (not (= .cse10 (select (select .cse12 .cse11) (select (select .cse13 .cse10) .cse14)))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse4 (store .cse5 .cse6 v_ArrVal_691)) |c_ULTIMATE.start_sll_circular_append_#t~ret9#1.base| v_ArrVal_683) .cse10) (+ .cse14 4)))))))))))) is different from false [2022-12-14 06:38:19,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130667781] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:19,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [553892806] [2022-12-14 06:38:19,520 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 06:38:19,520 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:38:19,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:38:19,520 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:38:19,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:38:19,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,538 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:38:19,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 06:38:19,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,552 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:38:19,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:38:19,567 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 [2022-12-14 06:38:19,570 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 [2022-12-14 06:38:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,582 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 16 treesize of output 17 [2022-12-14 06:38:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:19,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:38:19,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:38:19,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:38:19,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:38:19,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,774 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 11 [2022-12-14 06:38:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:19,783 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 23 treesize of output 11 [2022-12-14 06:38:19,789 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 19 treesize of output 11 [2022-12-14 06:38:19,950 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:19,951 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:19,952 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:19,952 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:19,953 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:19,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:19,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:19,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,156 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,157 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,158 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,159 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,159 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,187 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 23 treesize of output 11 [2022-12-14 06:38:20,193 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 19 treesize of output 11 [2022-12-14 06:38:20,202 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 11 [2022-12-14 06:38:20,416 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,420 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,421 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,597 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,598 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,599 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,600 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,600 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:20,639 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 23 treesize of output 11 [2022-12-14 06:38:20,655 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:38:20,655 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 06:38:20,680 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:38:20,681 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 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 06:38:20,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,740 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:20,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:20,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,765 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:20,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:20,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:20,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,830 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:20,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:20,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:20,855 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:20,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:20,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:21,011 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-12-14 06:38:21,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2022-12-14 06:38:21,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:21,061 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:38:21,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:38:21,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:21,115 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 06:38:21,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-12-14 06:38:21,124 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 [2022-12-14 06:38:21,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:21,180 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:38:21,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:38:21,227 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-12-14 06:38:21,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:38:21,239 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 [2022-12-14 06:38:21,253 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 [2022-12-14 06:38:21,271 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:21,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:38:21,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:21,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:21,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 65 [2022-12-14 06:38:21,310 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:21,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:38:21,940 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-12-14 06:38:21,947 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 [2022-12-14 06:38:21,951 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 [2022-12-14 06:38:21,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:21,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:21,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:21,966 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 16 treesize of output 17 [2022-12-14 06:38:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:21,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:21,972 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:38:27,349 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1297#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 5 |ULTIMATE.start_sll_circular_append_#in~data#1|) (<= |ULTIMATE.start_sll_circular_append_~data#1| 5) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~len#1|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 5) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_append_~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 06:38:27,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:38:27,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:38:27,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25] total 50 [2022-12-14 06:38:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743336090] [2022-12-14 06:38:27,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:38:27,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 06:38:27,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 06:38:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=5856, Unknown=18, NotChecked=154, Total=6320 [2022-12-14 06:38:27,352 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 50 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:31,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:31,196 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2022-12-14 06:38:31,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 06:38:31,197 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 32 [2022-12-14 06:38:31,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:31,197 INFO L225 Difference]: With dead ends: 66 [2022-12-14 06:38:31,197 INFO L226 Difference]: Without dead ends: 58 [2022-12-14 06:38:31,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1986 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=567, Invalid=8161, Unknown=18, NotChecked=184, Total=8930 [2022-12-14 06:38:31,199 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 265 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:31,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 562 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 06:38:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-14 06:38:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2022-12-14 06:38:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:38:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2022-12-14 06:38:31,207 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 32 [2022-12-14 06:38:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:31,208 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2022-12-14 06:38:31,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2022-12-14 06:38:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 06:38:31,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:31,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:31,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:38:31,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:31,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:31,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1787352801, now seen corresponding path program 2 times [2022-12-14 06:38:31,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:31,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793008627] [2022-12-14 06:38:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:31,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:38:33,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:33,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793008627] [2022-12-14 06:38:33,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793008627] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:33,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045242498] [2022-12-14 06:38:33,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:38:33,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:33,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:33,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:38:33,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 06:38:33,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 06:38:33,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:38:33,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 122 conjunts are in the unsatisfiable core [2022-12-14 06:38:33,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:38:33,726 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 [2022-12-14 06:38:33,878 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:38:33,878 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 [2022-12-14 06:38:33,936 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 [2022-12-14 06:38:33,941 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:38:34,011 INFO L321 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-12-14 06:38:34,011 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 50 [2022-12-14 06:38:34,020 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 39 treesize of output 30 [2022-12-14 06:38:34,090 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-12-14 06:38:34,091 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 42 [2022-12-14 06:38:34,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:38:34,100 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:34,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,215 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-12-14 06:38:34,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2022-12-14 06:38:34,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,232 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-12-14 06:38:34,232 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 90 treesize of output 78 [2022-12-14 06:38:34,246 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-12-14 06:38:34,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 06:38:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:34,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,562 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-12-14 06:38:34,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 96 treesize of output 51 [2022-12-14 06:38:34,626 INFO L321 Elim1Store]: treesize reduction 41, result has 16.3 percent of original size [2022-12-14 06:38:34,626 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 7 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 30 [2022-12-14 06:38:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:38:34,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:38:34,874 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| Int) (v_ArrVal_861 (Array Int Int)) (v_ArrVal_860 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28|) 0)) (not (< |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| |c_#StackHeapBarrier|)) (not (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_860))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= .cse0 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_sll_circular_append_#t~ret9#1.base_28| v_ArrVal_861))) (let ((.cse5 (select (select .cse4 |c_ULTIMATE.start_sll_circular_append_~head#1.base|) |c_ULTIMATE.start_sll_circular_append_~head#1.offset|))) (let ((.cse2 (select (select .cse1 .cse0) .cse5)) (.cse3 (select (select .cse4 .cse0) .cse5))) (select (select .cse1 (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3))))))))))) is different from false [2022-12-14 06:38:34,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045242498] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:34,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1578489723] [2022-12-14 06:38:34,877 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 06:38:34,877 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:38:34,877 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:38:34,877 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:38:34,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:38:34,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,896 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:38:34,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 06:38:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,913 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:38:34,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 06:38:34,930 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 [2022-12-14 06:38:34,932 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 [2022-12-14 06:38:34,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:34,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,945 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 16 treesize of output 17 [2022-12-14 06:38:34,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:34,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:38:34,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:38:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:34,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 06:38:35,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:35,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-12-14 06:38:35,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:35,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-12-14 06:38:35,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:35,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:35,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:35,174 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,175 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,176 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,178 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,178 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:35,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:35,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:35,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 06:38:35,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-12-14 06:38:35,337 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,339 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,340 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:35,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:35,386 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 205 [2022-12-14 06:38:35,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,396 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 207 [2022-12-14 06:38:35,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,404 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 114 [2022-12-14 06:38:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:35,519 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 140 treesize of output 124 [2022-12-14 06:38:35,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,526 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 136 treesize of output 124 [2022-12-14 06:38:35,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,532 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 128 treesize of output 116 [2022-12-14 06:38:35,658 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 [2022-12-14 06:38:35,665 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 [2022-12-14 06:38:35,671 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 [2022-12-14 06:38:35,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,750 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:35,750 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 15 treesize of output 7 [2022-12-14 06:38:35,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,762 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:35,762 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 15 treesize of output 7 [2022-12-14 06:38:35,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,828 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:35,829 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 15 treesize of output 7 [2022-12-14 06:38:35,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,840 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:35,840 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 15 treesize of output 7 [2022-12-14 06:38:35,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:35,979 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:38:35,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:38:36,023 INFO L321 Elim1Store]: treesize reduction 39, result has 48.7 percent of original size [2022-12-14 06:38:36,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 67 [2022-12-14 06:38:36,034 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 [2022-12-14 06:38:36,046 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 [2022-12-14 06:38:36,060 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:36,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 06:38:36,081 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:38:36,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-12-14 06:38:36,102 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 06:38:36,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:36,189 INFO L321 Elim1Store]: treesize reduction 117, result has 32.4 percent of original size [2022-12-14 06:38:36,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 120 [2022-12-14 06:38:36,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:36,241 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 06:38:36,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 37 [2022-12-14 06:38:36,251 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 [2022-12-14 06:38:36,296 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-12-14 06:38:36,296 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 1 case distinctions, treesize of input 31 treesize of output 15 [2022-12-14 06:38:36,827 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-12-14 06:38:36,834 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 [2022-12-14 06:38:36,837 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 [2022-12-14 06:38:36,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:36,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:36,855 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 16 treesize of output 17 [2022-12-14 06:38:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:36,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 06:38:36,861 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:38:44,201 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1683#(and (<= 2 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= 5 |ULTIMATE.start_sll_circular_append_#in~data#1|) (<= |ULTIMATE.start_sll_circular_append_~data#1| 5) (not (= (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) |ULTIMATE.start_main_~data~0#1|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (or (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (exists ((v_DerPreprocessor_26 (Array Int Int)) (v_DerPreprocessor_25 (Array Int Int))) (and (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_25) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_26) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_25) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_26) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= v_DerPreprocessor_25 (select (store (store (store (store |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_25) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_26) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_25) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_26) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)))) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|))) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (<= |ULTIMATE.start_sll_circular_append_#in~data#1| 5) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_append_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~count~0#1| 0) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.base|) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (and (or (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~head#1.base|)) (not (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~head#1.offset|))) (or (and (= |ULTIMATE.start_sll_circular_append_~last~1#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) (= |ULTIMATE.start_sll_circular_append_~last~1#1.offset| |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (or (exists ((v_DerPreprocessor_28 (Array Int Int))) (and (exists ((v_DerPreprocessor_27 (Array Int Int))) (and (= v_DerPreprocessor_27 (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~last~1#1.base|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|) |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|) (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~head#1.base|) |ULTIMATE.start_sll_circular_append_~head#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select (select (store (store (store (store |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~last~1#1.base| v_DerPreprocessor_27) |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| v_DerPreprocessor_28) |ULTIMATE.start_sll_circular_append_~last~1#1.base|) |ULTIMATE.start_sll_circular_append_~last~1#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.base| (select v_DerPreprocessor_28 |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset|)))) (= |ULTIMATE.start_sll_circular_append_~head#1.base| |ULTIMATE.start_sll_circular_append_~new_last~0#1.base|)))) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~last~2#1.base|) |ULTIMATE.start_main_~last~2#1.offset|)) (= |ULTIMATE.start_sll_circular_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_sll_circular_append_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 5 |ULTIMATE.start_sll_circular_append_~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_sll_circular_append_~head#1.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= |ULTIMATE.start_main_~last~2#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_sll_circular_append_~head#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~last~2#1.offset|) (= |#NULL.base| 0))' at error location [2022-12-14 06:38:44,201 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 06:38:44,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 06:38:44,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 22] total 42 [2022-12-14 06:38:44,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5368139] [2022-12-14 06:38:44,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 06:38:44,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-12-14 06:38:44,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:44,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-12-14 06:38:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=4035, Unknown=36, NotChecked=128, Total=4422 [2022-12-14 06:38:44,203 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 42 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:46,232 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2022-12-14 06:38:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 06:38:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 32 [2022-12-14 06:38:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:46,233 INFO L225 Difference]: With dead ends: 59 [2022-12-14 06:38:46,233 INFO L226 Difference]: Without dead ends: 45 [2022-12-14 06:38:46,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1525 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=376, Invalid=5444, Unknown=36, NotChecked=150, Total=6006 [2022-12-14 06:38:46,235 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 94 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:46,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 321 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:38:46,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-14 06:38:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-12-14 06:38:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 06:38:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-12-14 06:38:46,243 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 32 [2022-12-14 06:38:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:46,243 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-12-14 06:38:46,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 06:38:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-12-14 06:38:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 06:38:46,244 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:46,244 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:46,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 06:38:46,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 06:38:46,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:46,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:46,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2006310497, now seen corresponding path program 2 times [2022-12-14 06:38:46,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:46,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710124004] [2022-12-14 06:38:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:46,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 06:38:46,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:46,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710124004] [2022-12-14 06:38:46,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710124004] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:46,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015932249] [2022-12-14 06:38:46,508 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:38:46,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:46,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:46,509 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:38:46,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 06:38:46,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 06:38:46,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:38:46,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:38:46,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:38:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 06:38:46,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:38:46,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015932249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:38:46,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 06:38:46,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-12-14 06:38:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183639045] [2022-12-14 06:38:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:38:46,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:38:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:38:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:38:46,766 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 06:38:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:46,786 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2022-12-14 06:38:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:38:46,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-12-14 06:38:46,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:46,787 INFO L225 Difference]: With dead ends: 56 [2022-12-14 06:38:46,787 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 06:38:46,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:38:46,787 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:46,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 33 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:38:46,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 06:38:46,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 06:38:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:38:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-14 06:38:46,794 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 34 [2022-12-14 06:38:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:46,794 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-14 06:38:46,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 06:38:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-14 06:38:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 06:38:46,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:46,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:46,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 06:38:46,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:46,996 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:38:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash -636159588, now seen corresponding path program 2 times [2022-12-14 06:38:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:46,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367137747] [2022-12-14 06:38:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 06:38:48,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:48,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367137747] [2022-12-14 06:38:48,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367137747] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:38:48,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576444076] [2022-12-14 06:38:48,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 06:38:48,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:38:48,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:48,272 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:38:48,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9967455a-38cc-4512-a6f4-b2112bb3aca3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:38:48,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 06:38:48,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:38:48,715 WARN L261 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 206 conjunts are in the unsatisfiable core [2022-12-14 06:38:48,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:38:48,756 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 [2022-12-14 06:38:48,915 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 [2022-12-14 06:38:48,966 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 06:38:48,966 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 [2022-12-14 06:38:49,031 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 [2022-12-14 06:38:49,036 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 [2022-12-14 06:38:49,042 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 19 treesize of output 18 [2022-12-14 06:38:49,136 INFO L321 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-12-14 06:38:49,136 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 56 [2022-12-14 06:38:49,141 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 26 treesize of output 28 [2022-12-14 06:38:49,153 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 39 treesize of output 30 [2022-12-14 06:38:49,248 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-12-14 06:38:49,248 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 49 [2022-12-14 06:38:49,255 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:38:49,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 06:38:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:49,411 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-12-14 06:38:49,411 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 87 [2022-12-14 06:38:49,428 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 06:38:49,428 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 [2022-12-14 06:38:49,434 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 [2022-12-14 06:38:49,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:49,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:49,459 INFO L321 Elim1Store]: treesize reduction 60, result has 41.7 percent of original size [2022-12-14 06:38:49,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 68 [2022-12-14 06:38:49,485 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-12-14 06:38:49,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 06:38:50,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:50,541 INFO L321 Elim1Store]: treesize reduction 432, result has 13.9 percent of original size [2022-12-14 06:38:50,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 444 treesize of output 235 [2022-12-14 06:38:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:38:50,622 INFO L321 Elim1Store]: treesize reduction 402, result has 11.3 percent of original size [2022-12-14 06:38:50,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 694 treesize of output 548 [2022-12-14 06:38:50,636 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 45 treesize of output 49 [2022-12-14 06:38:50,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 20 [2022-12-14 06:38:50,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:38:50,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2022-12-14 06:38:50,690 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 9 treesize of output 7 [2022-12-14 06:38:51,035 INFO L321 Elim1Store]: treesize reduction 145, result has 3.3 percent of original size [2022-12-14 06:38:51,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 480 treesize of output 252 [2022-12-14 06:38:51,041 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 233 treesize of output 203 [2022-12-14 06:38:51,046 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 178 treesize of output 154 [2022-12-14 06:38:51,850 INFO L321 Elim1Store]: treesize reduction 173, result has 0.6 percent of original size [2022-12-14 06:38:51,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 552 treesize of output 1 [2022-12-14 06:39:11,472 INFO L321 Elim1Store]: treesize reduction 784, result has 57.6 percent of original size [2022-12-14 06:39:11,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 32 new quantified variables, introduced 153 case distinctions, treesize of input 16370 treesize of output 5772 [2022-12-14 06:39:11,784 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 4574 treesize of output 4372 [2022-12-14 06:39:11,848 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 4372 treesize of output 4272 [2022-12-14 06:39:11,951 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:11,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4272 treesize of output 4259 [2022-12-14 06:39:12,047 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:12,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4250 treesize of output 4215 [2022-12-14 06:39:12,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:12,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4206 treesize of output 4173 [2022-12-14 06:39:12,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:12,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4164 treesize of output 4089 [2022-12-14 06:39:12,342 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:12,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4080 treesize of output 4045 [2022-12-14 06:39:12,442 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 06:39:12,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4036 treesize of output 4023